21872402

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 35852544

約数和(自身を除く): 13980142

約数列:

[1, 2, 23, 37, 46, 71, 74, 142, 181, 362, 851, 1633, 1702, 2627, 3266, 4163, 5254, 6697, 8326, 12851, 13394, 25702, 60421, 120842, 154031, 295573, 308062, 475487, 591146, 950974, 10936201, 21872402]

約数ペア:

[(1, 21872402), (2, 10936201), (23, 950974), (37, 591146), (46, 475487), (71, 308062), (74, 295573), (142, 154031), (181, 120842), (362, 60421), (851, 25702), (1633, 13394), (1702, 12851), (2627, 8326), (3266, 6697), (4163, 5254)]