21800490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13711}}^1$

素因数の和:13774

約数の個数: 32

約数和(自身を含む): 53312256

約数和(自身を除く): 31511766

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590, 13711, 27422, 41133, 68555, 82266, 137110, 205665, 411330, 726683, 1453366, 2180049, 3633415, 4360098, 7266830, 10900245, 21800490]

約数ペア:

[(1, 21800490), (2, 10900245), (3, 7266830), (5, 4360098), (6, 3633415), (10, 2180049), (15, 1453366), (30, 726683), (53, 411330), (106, 205665), (159, 137110), (265, 82266), (318, 68555), (530, 41133), (795, 27422), (1590, 13711)]