21430630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{467}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 41749344

約数和(自身を除く): 20318714

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 353, 467, 706, 934, 1765, 2335, 3530, 4589, 4670, 6071, 9178, 12142, 22945, 30355, 45890, 60710, 164851, 329702, 824255, 1648510, 2143063, 4286126, 10715315, 21430630]

約数ペア:

[(1, 21430630), (2, 10715315), (5, 4286126), (10, 2143063), (13, 1648510), (26, 824255), (65, 329702), (130, 164851), (353, 60710), (467, 45890), (706, 30355), (934, 22945), (1765, 12142), (2335, 9178), (3530, 6071), (4589, 4670)]