21903575421

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2791}}^1$

素因数の和:2939

約数の個数: 128

約数和(自身を含む): 40526438400

約数和(自身を除く): 18622862979

約数列:

[1, 3, 7, 13, 17, 19, 21, 39, 51, 57, 89, 91, 119, 133, 221, 247, 267, 273, 323, 357, 399, 623, 663, 741, 969, 1157, 1513, 1547, 1691, 1729, 1869, 2261, 2791, 3471, 4199, 4539, 4641, 5073, 5187, 6783, 8099, 8373, 10591, 11837, 12597, 19537, 19669, 21983, 24297, 28747, 29393, 31773, 35511, 36283, 47447, 53029, 58611, 59007, 65949, 86241, 88179, 108849, 137683, 142341, 153881, 159087, 201229, 248399, 253981, 332129, 371203, 373711, 413049, 461643, 603687, 616811, 689377, 745197, 761943, 901493, 996387, 1113609, 1121133, 1738793, 1850433, 2068131, 2615977, 2704479, 3229187, 4222783, 4317677, 4719581, 4825639, 5216379, 6310451, 7847931, 9687561, 11719409, 12668349, 12953031, 14158743, 14476917, 18931353, 22604309, 29559481, 33037067, 35158227, 54896179, 61354553, 67812927, 80232877, 82035863, 88678443, 99111201, 164688537, 184063659, 240698631, 246107589, 384273253, 429481871, 561630139, 1043027401, 1152819759, 1288445613, 1684890417, 3129082203, 7301191807, 21903575421]

約数ペア:

[(1, 21903575421), (3, 7301191807), (7, 3129082203), (13, 1684890417), (17, 1288445613), (19, 1152819759), (21, 1043027401), (39, 561630139), (51, 429481871), (57, 384273253), (89, 246107589), (91, 240698631), (119, 184063659), (133, 164688537), (221, 99111201), (247, 88678443), (267, 82035863), (273, 80232877), (323, 67812927), (357, 61354553), (399, 54896179), (623, 35158227), (663, 33037067), (741, 29559481), (969, 22604309), (1157, 18931353), (1513, 14476917), (1547, 14158743), (1691, 12953031), (1729, 12668349), (1869, 11719409), (2261, 9687561), (2791, 7847931), (3471, 6310451), (4199, 5216379), (4539, 4825639), (4641, 4719581), (5073, 4317677), (5187, 4222783), (6783, 3229187), (8099, 2704479), (8373, 2615977), (10591, 2068131), (11837, 1850433), (12597, 1738793), (19537, 1121133), (19669, 1113609), (21983, 996387), (24297, 901493), (28747, 761943), (29393, 745197), (31773, 689377), (35511, 616811), (36283, 603687), (47447, 461643), (53029, 413049), (58611, 373711), (59007, 371203), (65949, 332129), (86241, 253981), (88179, 248399), (108849, 201229), (137683, 159087), (142341, 153881)]