21732540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1289}}^1$

素因数の和:1582

約数の個数: 48

約数和(自身を含む): 61115040

約数和(自身を除く): 39382500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 281, 562, 843, 1124, 1289, 1405, 1686, 2578, 2810, 3372, 3867, 4215, 5156, 5620, 6445, 7734, 8430, 12890, 15468, 16860, 19335, 25780, 38670, 77340, 362209, 724418, 1086627, 1448836, 1811045, 2173254, 3622090, 4346508, 5433135, 7244180, 10866270, 21732540]

約数ペア:

[(1, 21732540), (2, 10866270), (3, 7244180), (4, 5433135), (5, 4346508), (6, 3622090), (10, 2173254), (12, 1811045), (15, 1448836), (20, 1086627), (30, 724418), (60, 362209), (281, 77340), (562, 38670), (843, 25780), (1124, 19335), (1289, 16860), (1405, 15468), (1686, 12890), (2578, 8430), (2810, 7734), (3372, 6445), (3867, 5620), (4215, 5156)]