21057972

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5869}}^1$

素因数の和:5912

約数の個数: 48

約数和(自身を含む): 55224960

約数和(自身を除く): 34166988

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 276, 299, 598, 897, 1196, 1794, 3588, 5869, 11738, 17607, 23476, 35214, 70428, 76297, 134987, 152594, 228891, 269974, 305188, 404961, 457782, 539948, 809922, 915564, 1619844, 1754831, 3509662, 5264493, 7019324, 10528986, 21057972]

約数ペア:

[(1, 21057972), (2, 10528986), (3, 7019324), (4, 5264493), (6, 3509662), (12, 1754831), (13, 1619844), (23, 915564), (26, 809922), (39, 539948), (46, 457782), (52, 404961), (69, 305188), (78, 269974), (92, 228891), (138, 152594), (156, 134987), (276, 76297), (299, 70428), (598, 35214), (897, 23476), (1196, 17607), (1794, 11738), (3588, 5869)]