21097518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1373}}^1$

素因数の和:1588

約数の個数: 32

約数和(自身を含む): 45704736

約数和(自身を除く): 24607218

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 197, 394, 591, 1182, 1373, 2561, 2746, 4119, 5122, 7683, 8238, 15366, 17849, 35698, 53547, 107094, 270481, 540962, 811443, 1622886, 3516253, 7032506, 10548759, 21097518]

約数ペア:

[(1, 21097518), (2, 10548759), (3, 7032506), (6, 3516253), (13, 1622886), (26, 811443), (39, 540962), (78, 270481), (197, 107094), (394, 53547), (591, 35698), (1182, 17849), (1373, 15366), (2561, 8238), (2746, 7683), (4119, 5122)]