21328970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{859}}^1$

素因数の和:1070

約数の個数: 32

約数和(自身を含む): 41610240

約数和(自身を除く): 20281270

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 191, 382, 859, 955, 1718, 1910, 2483, 4295, 4966, 8590, 11167, 12415, 22334, 24830, 55835, 111670, 164069, 328138, 820345, 1640690, 2132897, 4265794, 10664485, 21328970]

約数ペア:

[(1, 21328970), (2, 10664485), (5, 4265794), (10, 2132897), (13, 1640690), (26, 820345), (65, 328138), (130, 164069), (191, 111670), (382, 55835), (859, 24830), (955, 22334), (1718, 12415), (1910, 11167), (2483, 8590), (4295, 4966)]