21143402

素因数分解:

$2^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2731}}^1$

素因数の和:2826

約数の個数: 24

約数和(自身を含む): 37373760

約数和(自身を除く): 16230358

約数列:

[1, 2, 7, 14, 49, 79, 98, 158, 553, 1106, 2731, 3871, 5462, 7742, 19117, 38234, 133819, 215749, 267638, 431498, 1510243, 3020486, 10571701, 21143402]

約数ペア:

[(1, 21143402), (2, 10571701), (7, 3020486), (14, 1510243), (49, 431498), (79, 267638), (98, 215749), (158, 133819), (553, 38234), (1106, 19117), (2731, 7742), (3871, 5462)]