21161388

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{28909}}^1$

素因数の和:28977

約数の個数: 24

約数和(自身を含む): 50187760

約数和(自身を除く): 29026372

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 183, 244, 366, 732, 28909, 57818, 86727, 115636, 173454, 346908, 1763449, 3526898, 5290347, 7053796, 10580694, 21161388]

約数ペア:

[(1, 21161388), (2, 10580694), (3, 7053796), (4, 5290347), (6, 3526898), (12, 1763449), (61, 346908), (122, 173454), (183, 115636), (244, 86727), (366, 57818), (732, 28909)]