21354849968

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1\times {\mathrm{1091}}^1$

素因数の和:1247

約数の個数: 120

約数和(自身を含む): 45716448960

約数和(自身を除く): 24361598992

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 67, 76, 124, 134, 152, 248, 268, 304, 496, 536, 589, 961, 1072, 1091, 1178, 1273, 1922, 2077, 2182, 2356, 2546, 3844, 4154, 4364, 4712, 5092, 7688, 8308, 8728, 9424, 10184, 15376, 16616, 17456, 18259, 20368, 20729, 33232, 33821, 36518, 39463, 41458, 64387, 67642, 73036, 73097, 78926, 82916, 128774, 135284, 146072, 146194, 157852, 165832, 257548, 270568, 292144, 292388, 315704, 331664, 515096, 541136, 584776, 631408, 642599, 1030192, 1048451, 1169552, 1223353, 1285198, 1388843, 2096902, 2266007, 2446706, 2570396, 2777686, 4193804, 4532014, 4893412, 5140792, 5555372, 8387608, 9064028, 9786824, 10281584, 11110744, 16775216, 18128056, 19573648, 19920569, 22221488, 36256112, 39841138, 43054133, 70246217, 79682276, 86108266, 140492434, 159364552, 172216532, 280984868, 318729104, 344433064, 561969736, 688866128, 1123939472, 1334678123, 2669356246, 5338712492, 10677424984, 21354849968]

約数ペア:

[(1, 21354849968), (2, 10677424984), (4, 5338712492), (8, 2669356246), (16, 1334678123), (19, 1123939472), (31, 688866128), (38, 561969736), (62, 344433064), (67, 318729104), (76, 280984868), (124, 172216532), (134, 159364552), (152, 140492434), (248, 86108266), (268, 79682276), (304, 70246217), (496, 43054133), (536, 39841138), (589, 36256112), (961, 22221488), (1072, 19920569), (1091, 19573648), (1178, 18128056), (1273, 16775216), (1922, 11110744), (2077, 10281584), (2182, 9786824), (2356, 9064028), (2546, 8387608), (3844, 5555372), (4154, 5140792), (4364, 4893412), (4712, 4532014), (5092, 4193804), (7688, 2777686), (8308, 2570396), (8728, 2446706), (9424, 2266007), (10184, 2096902), (15376, 1388843), (16616, 1285198), (17456, 1223353), (18259, 1169552), (20368, 1048451), (20729, 1030192), (33232, 642599), (33821, 631408), (36518, 584776), (39463, 541136), (41458, 515096), (64387, 331664), (67642, 315704), (73036, 292388), (73097, 292144), (78926, 270568), (82916, 257548), (128774, 165832), (135284, 157852), (146072, 146194)]