21504678

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{11987}}^1$

素因数の和:12028

約数の個数: 32

約数和(自身を含む): 48335616

約数和(自身を除く): 26830938

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 11987, 23974, 35961, 71922, 155831, 275701, 311662, 467493, 551402, 827103, 934986, 1654206, 3584113, 7168226, 10752339, 21504678]

約数ペア:

[(1, 21504678), (2, 10752339), (3, 7168226), (6, 3584113), (13, 1654206), (23, 934986), (26, 827103), (39, 551402), (46, 467493), (69, 311662), (78, 275701), (138, 155831), (299, 71922), (598, 35961), (897, 23974), (1794, 11987)]