21015410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1163}}^1$

素因数の和:1322

約数の個数: 32

約数和(自身を含む): 41065920

約数和(自身を除く): 20050510

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 278, 695, 1163, 1390, 1807, 2326, 3614, 5815, 9035, 11630, 15119, 18070, 30238, 75595, 151190, 161657, 323314, 808285, 1616570, 2101541, 4203082, 10507705, 21015410]

約数ペア:

[(1, 21015410), (2, 10507705), (5, 4203082), (10, 2101541), (13, 1616570), (26, 808285), (65, 323314), (130, 161657), (139, 151190), (278, 75595), (695, 30238), (1163, 18070), (1390, 15119), (1807, 11630), (2326, 9035), (3614, 5815)]