18737318

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 30697920

約数和(自身を除く): 11960602

約数列:

[1, 2, 23, 37, 46, 74, 101, 109, 202, 218, 851, 1702, 2323, 2507, 3737, 4033, 4646, 5014, 7474, 8066, 11009, 22018, 85951, 92759, 171902, 185518, 253207, 407333, 506414, 814666, 9368659, 18737318]

約数ペア:

[(1, 18737318), (2, 9368659), (23, 814666), (37, 506414), (46, 407333), (74, 253207), (101, 185518), (109, 171902), (202, 92759), (218, 85951), (851, 22018), (1702, 11009), (2323, 8066), (2507, 7474), (3737, 5014), (4033, 4646)]