18568641

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4041

約数の個数: 32

約数和(自身を含む): 32272128

約数和(自身を除く): 13703487

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4001, 4641, 12003, 28007, 52013, 68017, 84021, 156039, 204051, 364091, 476119, 884221, 1092273, 1428357, 2652663, 6189547, 18568641]

約数ペア:

[(1, 18568641), (3, 6189547), (7, 2652663), (13, 1428357), (17, 1092273), (21, 884221), (39, 476119), (51, 364091), (91, 204051), (119, 156039), (221, 84021), (273, 68017), (357, 52013), (663, 28007), (1547, 12003), (4001, 4641)]