21437090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{2549}}^1$

素因数の和:2614

約数の個数: 24

約数和(自身を含む): 39978900

約数和(自身を除く): 18541810

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 841, 1682, 2549, 4205, 5098, 8410, 12745, 25490, 73921, 147842, 369605, 739210, 2143709, 4287418, 10718545, 21437090]

約数ペア:

[(1, 21437090), (2, 10718545), (5, 4287418), (10, 2143709), (29, 739210), (58, 369605), (145, 147842), (290, 73921), (841, 25490), (1682, 12745), (2549, 8410), (4205, 5098)]