27877731

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 45196800

約数和(自身を除く): 17319069

約数列:

[1, 3, 7, 19, 21, 57, 109, 133, 327, 399, 641, 763, 1923, 2071, 2289, 4487, 6213, 12179, 13461, 14497, 36537, 43491, 69869, 85253, 209607, 255759, 489083, 1327511, 1467249, 3982533, 9292577, 27877731]

約数ペア:

[(1, 27877731), (3, 9292577), (7, 3982533), (19, 1467249), (21, 1327511), (57, 489083), (109, 255759), (133, 209607), (327, 85253), (399, 69869), (641, 43491), (763, 36537), (1923, 14497), (2071, 13461), (2289, 12179), (4487, 6213)]