21040030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10067}}^1$

素因数の和:10104

約数の個数: 32

約数和(自身を含む): 43493760

約数和(自身を除く): 22453730

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10067, 20134, 50335, 100670, 110737, 191273, 221474, 382546, 553685, 956365, 1107370, 1912730, 2104003, 4208006, 10520015, 21040030]

約数ペア:

[(1, 21040030), (2, 10520015), (5, 4208006), (10, 2104003), (11, 1912730), (19, 1107370), (22, 956365), (38, 553685), (55, 382546), (95, 221474), (110, 191273), (190, 110737), (209, 100670), (418, 50335), (1045, 20134), (2090, 10067)]