21261630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54517}}^1$

素因数の和:54540

約数の個数: 32

約数和(自身を含む): 54954144

約数和(自身を除く): 33692514

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 54517, 109034, 163551, 272585, 327102, 545170, 708721, 817755, 1417442, 1635510, 2126163, 3543605, 4252326, 7087210, 10630815, 21261630]

約数ペア:

[(1, 21261630), (2, 10630815), (3, 7087210), (5, 4252326), (6, 3543605), (10, 2126163), (13, 1635510), (15, 1417442), (26, 817755), (30, 708721), (39, 545170), (65, 327102), (78, 272585), (130, 163551), (195, 109034), (390, 54517)]