21569820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1171}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 60643968

約数和(自身を除く): 39074148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 307, 614, 921, 1171, 1228, 1535, 1842, 2342, 3070, 3513, 3684, 4605, 4684, 5855, 6140, 7026, 9210, 11710, 14052, 17565, 18420, 23420, 35130, 70260, 359497, 718994, 1078491, 1437988, 1797485, 2156982, 3594970, 4313964, 5392455, 7189940, 10784910, 21569820]

約数ペア:

[(1, 21569820), (2, 10784910), (3, 7189940), (4, 5392455), (5, 4313964), (6, 3594970), (10, 2156982), (12, 1797485), (15, 1437988), (20, 1078491), (30, 718994), (60, 359497), (307, 70260), (614, 35130), (921, 23420), (1171, 18420), (1228, 17565), (1535, 14052), (1842, 11710), (2342, 9210), (3070, 7026), (3513, 6140), (3684, 5855), (4605, 4684)]