21218402

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13619}}^1$

素因数の和:13681

約数の個数: 16

約数和(自身を含む): 34322400

約数和(自身を除く): 13103998

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 13619, 27238, 258761, 517522, 558379, 1116758, 10609201, 21218402]

約数ペア:

[(1, 21218402), (2, 10609201), (19, 1116758), (38, 558379), (41, 517522), (82, 258761), (779, 27238), (1558, 13619)]