21112135

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 8436665

約数列:

[1, 5, 11, 19, 55, 89, 95, 209, 227, 445, 979, 1045, 1135, 1691, 2497, 4313, 4895, 8455, 12485, 18601, 20203, 21565, 47443, 93005, 101015, 222233, 237215, 383857, 1111165, 1919285, 4222427, 21112135]

約数ペア:

[(1, 21112135), (5, 4222427), (11, 1919285), (19, 1111165), (55, 383857), (89, 237215), (95, 222233), (209, 101015), (227, 93005), (445, 47443), (979, 21565), (1045, 20203), (1135, 18601), (1691, 12485), (2497, 8455), (4313, 4895)]