21219684

素因数分解:

$2^2\times 3^1\times {\mathrm{109}}^1\times {\mathrm{16223}}^1$

素因数の和:16339

約数の個数: 24

約数和(自身を含む): 49969920

約数和(自身を除く): 28750236

約数列:

[1, 2, 3, 4, 6, 12, 109, 218, 327, 436, 654, 1308, 16223, 32446, 48669, 64892, 97338, 194676, 1768307, 3536614, 5304921, 7073228, 10609842, 21219684]

約数ペア:

[(1, 21219684), (2, 10609842), (3, 7073228), (4, 5304921), (6, 3536614), (12, 1768307), (109, 194676), (218, 97338), (327, 64892), (436, 48669), (654, 32446), (1308, 16223)]