21815690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4093}}^1$

素因数の和:4154

約数の個数: 32

約数和(自身を含む): 43330896

約数和(自身を除く): 21515206

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 4093, 5330, 8186, 20465, 40930, 53209, 106418, 167813, 266045, 335626, 532090, 839065, 1678130, 2181569, 4363138, 10907845, 21815690]

約数ペア:

[(1, 21815690), (2, 10907845), (5, 4363138), (10, 2181569), (13, 1678130), (26, 839065), (41, 532090), (65, 335626), (82, 266045), (130, 167813), (205, 106418), (410, 53209), (533, 40930), (1066, 20465), (2665, 8186), (4093, 5330)]