18405416

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{523}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 35652960

約数和(自身を除く): 17247544

約数列:

[1, 2, 4, 8, 53, 83, 106, 166, 212, 332, 424, 523, 664, 1046, 2092, 4184, 4399, 8798, 17596, 27719, 35192, 43409, 55438, 86818, 110876, 173636, 221752, 347272, 2300677, 4601354, 9202708, 18405416]

約数ペア:

[(1, 18405416), (2, 9202708), (4, 4601354), (8, 2300677), (53, 347272), (83, 221752), (106, 173636), (166, 110876), (212, 86818), (332, 55438), (424, 43409), (523, 35192), (664, 27719), (1046, 17596), (2092, 8798), (4184, 4399)]