21488796

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{317}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 62506080

約数和(自身を除く): 41017284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 269, 317, 538, 634, 807, 951, 1076, 1268, 1614, 1883, 1902, 2219, 2421, 2853, 3228, 3766, 3804, 4438, 4842, 5649, 5706, 6657, 7532, 8876, 9684, 11298, 11412, 13314, 16947, 19971, 22596, 26628, 33894, 39942, 67788, 79884, 85273, 170546, 255819, 341092, 511638, 596911, 767457, 1023276, 1193822, 1534914, 1790733, 2387644, 3069828, 3581466, 5372199, 7162932, 10744398, 21488796]

約数ペア:

[(1, 21488796), (2, 10744398), (3, 7162932), (4, 5372199), (6, 3581466), (7, 3069828), (9, 2387644), (12, 1790733), (14, 1534914), (18, 1193822), (21, 1023276), (28, 767457), (36, 596911), (42, 511638), (63, 341092), (84, 255819), (126, 170546), (252, 85273), (269, 79884), (317, 67788), (538, 39942), (634, 33894), (807, 26628), (951, 22596), (1076, 19971), (1268, 16947), (1614, 13314), (1883, 11412), (1902, 11298), (2219, 9684), (2421, 8876), (2853, 7532), (3228, 6657), (3766, 5706), (3804, 5649), (4438, 4842)]