21556559744

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{385379}}^1$

素因数の和:385435

約数の個数: 64

約数和(自身を含む): 47170512000

約数和(自身を除く): 25613952256

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 304, 368, 437, 608, 736, 874, 1216, 1472, 1748, 2432, 2944, 3496, 6992, 13984, 27968, 55936, 385379, 770758, 1541516, 3083032, 6166064, 7322201, 8863717, 12332128, 14644402, 17727434, 24664256, 29288804, 35454868, 49328512, 58577608, 70909736, 117155216, 141819472, 168410623, 234310432, 283638944, 336821246, 468620864, 567277888, 673642492, 937241728, 1134555776, 1347284984, 2694569968, 5389139936, 10778279872, 21556559744]

約数ペア:

[(1, 21556559744), (2, 10778279872), (4, 5389139936), (8, 2694569968), (16, 1347284984), (19, 1134555776), (23, 937241728), (32, 673642492), (38, 567277888), (46, 468620864), (64, 336821246), (76, 283638944), (92, 234310432), (128, 168410623), (152, 141819472), (184, 117155216), (304, 70909736), (368, 58577608), (437, 49328512), (608, 35454868), (736, 29288804), (874, 24664256), (1216, 17727434), (1472, 14644402), (1748, 12332128), (2432, 8863717), (2944, 7322201), (3496, 6166064), (6992, 3083032), (13984, 1541516), (27968, 770758), (55936, 385379)]