18945399

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 29145600

約数和(自身を除く): 10200201

約数列:

[1, 3, 11, 23, 33, 69, 109, 229, 253, 327, 687, 759, 1199, 2507, 2519, 3597, 5267, 7521, 7557, 15801, 24961, 27577, 57937, 74883, 82731, 173811, 274571, 574103, 823713, 1722309, 6315133, 18945399]

約数ペア:

[(1, 18945399), (3, 6315133), (11, 1722309), (23, 823713), (33, 574103), (69, 274571), (109, 173811), (229, 82731), (253, 74883), (327, 57937), (687, 27577), (759, 24961), (1199, 15801), (2507, 7557), (2519, 7521), (3597, 5267)]