21182730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6991}}^1$

素因数の和:7102

約数の個数: 32

約数和(自身を含む): 51349248

約数和(自身を除く): 30166518

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 101, 202, 303, 505, 606, 1010, 1515, 3030, 6991, 13982, 20973, 34955, 41946, 69910, 104865, 209730, 706091, 1412182, 2118273, 3530455, 4236546, 7060910, 10591365, 21182730]

約数ペア:

[(1, 21182730), (2, 10591365), (3, 7060910), (5, 4236546), (6, 3530455), (10, 2118273), (15, 1412182), (30, 706091), (101, 209730), (202, 104865), (303, 69910), (505, 41946), (606, 34955), (1010, 20973), (1515, 13982), (3030, 6991)]