20953768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7681}}^1$

素因数の和:7729

約数の個数: 32

約数和(自身を含む): 44248320

約数和(自身を除く): 23294552

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 7681, 15362, 30724, 61448, 84491, 168982, 238111, 337964, 476222, 675928, 952444, 1904888, 2619221, 5238442, 10476884, 20953768]

約数ペア:

[(1, 20953768), (2, 10476884), (4, 5238442), (8, 2619221), (11, 1904888), (22, 952444), (31, 675928), (44, 476222), (62, 337964), (88, 238111), (124, 168982), (248, 84491), (341, 61448), (682, 30724), (1364, 15362), (2728, 7681)]