21356738

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{1327}}^1$

素因数の和:1961

約数の個数: 16

約数和(自身を含む): 34581120

約数和(自身を除く): 13224382

約数列:

[1, 2, 13, 26, 619, 1238, 1327, 2654, 8047, 16094, 17251, 34502, 821413, 1642826, 10678369, 21356738]

約数ペア:

[(1, 21356738), (2, 10678369), (13, 1642826), (26, 821413), (619, 34502), (1238, 17251), (1327, 16094), (2654, 8047)]