17990974

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:232

約数の個数: 32

約数和(自身を含む): 29140992

約数和(自身を除く): 11150018

約数列:

[1, 2, 31, 61, 62, 67, 71, 122, 134, 142, 1891, 2077, 2201, 3782, 4087, 4154, 4331, 4402, 4757, 8174, 8662, 9514, 126697, 134261, 147467, 253394, 268522, 290177, 294934, 580354, 8995487, 17990974]

約数ペア:

[(1, 17990974), (2, 8995487), (31, 580354), (61, 294934), (62, 290177), (67, 268522), (71, 253394), (122, 147467), (134, 134261), (142, 126697), (1891, 9514), (2077, 8662), (2201, 8174), (3782, 4757), (4087, 4402), (4154, 4331)]