642567597

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{21001}}^1$

素因数の和:21089

約数の個数: 32

約数和(自身を含む): 1032290304

約数和(自身を除く): 389722707

約数列:

[1, 3, 7, 21, 31, 47, 93, 141, 217, 329, 651, 987, 1457, 4371, 10199, 21001, 30597, 63003, 147007, 441021, 651031, 987047, 1953093, 2961141, 4557217, 6909329, 13671651, 20727987, 30598457, 91795371, 214189199, 642567597]

約数ペア:

[(1, 642567597), (3, 214189199), (7, 91795371), (21, 30598457), (31, 20727987), (47, 13671651), (93, 6909329), (141, 4557217), (217, 2961141), (329, 1953093), (651, 987047), (987, 651031), (1457, 441021), (4371, 147007), (10199, 63003), (21001, 30597)]