21931310

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{359}}^1$

素因数の和:556

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 18892690

約数列:

[1, 2, 5, 10, 41, 82, 149, 205, 298, 359, 410, 718, 745, 1490, 1795, 3590, 6109, 12218, 14719, 29438, 30545, 53491, 61090, 73595, 106982, 147190, 267455, 534910, 2193131, 4386262, 10965655, 21931310]

約数ペア:

[(1, 21931310), (2, 10965655), (5, 4386262), (10, 2193131), (41, 534910), (82, 267455), (149, 147190), (205, 106982), (298, 73595), (359, 61090), (410, 53491), (718, 30545), (745, 29438), (1490, 14719), (1795, 12218), (3590, 6109)]