21137930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{3257}}^1$

素因数の和:3334

約数の個数: 32

約数和(自身を含む): 42223680

約数和(自身を除く): 21085750

約数列:

[1, 2, 5, 10, 11, 22, 55, 59, 110, 118, 295, 590, 649, 1298, 3245, 3257, 6490, 6514, 16285, 32570, 35827, 71654, 179135, 192163, 358270, 384326, 960815, 1921630, 2113793, 4227586, 10568965, 21137930]

約数ペア:

[(1, 21137930), (2, 10568965), (5, 4227586), (10, 2113793), (11, 1921630), (22, 960815), (55, 384326), (59, 358270), (110, 192163), (118, 179135), (295, 71654), (590, 35827), (649, 32570), (1298, 16285), (3245, 6514), (3257, 6490)]