17959864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 39060000

約数和(自身を除く): 21100136

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 61, 76, 104, 122, 149, 152, 244, 247, 298, 488, 494, 596, 793, 988, 1159, 1192, 1586, 1937, 1976, 2318, 2831, 3172, 3874, 4636, 5662, 6344, 7748, 9089, 9272, 11324, 15067, 15496, 18178, 22648, 30134, 36356, 36803, 60268, 72712, 73606, 118157, 120536, 147212, 172691, 236314, 294424, 345382, 472628, 690764, 945256, 1381528, 2244983, 4489966, 8979932, 17959864]

約数ペア:

[(1, 17959864), (2, 8979932), (4, 4489966), (8, 2244983), (13, 1381528), (19, 945256), (26, 690764), (38, 472628), (52, 345382), (61, 294424), (76, 236314), (104, 172691), (122, 147212), (149, 120536), (152, 118157), (244, 73606), (247, 72712), (298, 60268), (488, 36803), (494, 36356), (596, 30134), (793, 22648), (988, 18178), (1159, 15496), (1192, 15067), (1586, 11324), (1937, 9272), (1976, 9089), (2318, 7748), (2831, 6344), (3172, 5662), (3874, 4636)]