21261270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8971}}^1$

素因数の和:9060

約数の個数: 32

約数和(自身を含む): 51678720

約数和(自身を除く): 30417450

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 237, 395, 474, 790, 1185, 2370, 8971, 17942, 26913, 44855, 53826, 89710, 134565, 269130, 708709, 1417418, 2126127, 3543545, 4252254, 7087090, 10630635, 21261270]

約数ペア:

[(1, 21261270), (2, 10630635), (3, 7087090), (5, 4252254), (6, 3543545), (10, 2126127), (15, 1417418), (30, 708709), (79, 269130), (158, 134565), (237, 89710), (395, 53826), (474, 44855), (790, 26913), (1185, 17942), (2370, 8971)]