25321978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{347}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 43296768

約数和(自身を除く): 17974790

約数列:

[1, 2, 11, 22, 31, 62, 107, 214, 341, 347, 682, 694, 1177, 2354, 3317, 3817, 6634, 7634, 10757, 21514, 36487, 37129, 72974, 74258, 118327, 236654, 408419, 816838, 1150999, 2301998, 12660989, 25321978]

約数ペア:

[(1, 25321978), (2, 12660989), (11, 2301998), (22, 1150999), (31, 816838), (62, 408419), (107, 236654), (214, 118327), (341, 74258), (347, 72974), (682, 37129), (694, 36487), (1177, 21514), (2354, 10757), (3317, 7634), (3817, 6634)]