21015306

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89809}}^1$

素因数の和:89830

約数の個数: 24

約数和(自身を含む): 49036260

約数和(自身を除く): 28020954

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 89809, 179618, 269427, 538854, 808281, 1167517, 1616562, 2335034, 3502551, 7005102, 10507653, 21015306]

約数ペア:

[(1, 21015306), (2, 10507653), (3, 7005102), (6, 3502551), (9, 2335034), (13, 1616562), (18, 1167517), (26, 808281), (39, 538854), (78, 269427), (117, 179618), (234, 89809)]