11983984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:605

約数の個数: 40

約数和(自身を含む): 24800000

約数和(自身を除く): 12816016

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 79, 152, 158, 304, 316, 499, 632, 998, 1264, 1501, 1996, 3002, 3992, 6004, 7984, 9481, 12008, 18962, 24016, 37924, 39421, 75848, 78842, 151696, 157684, 315368, 630736, 748999, 1497998, 2995996, 5991992, 11983984]

約数ペア:

[(1, 11983984), (2, 5991992), (4, 2995996), (8, 1497998), (16, 748999), (19, 630736), (38, 315368), (76, 157684), (79, 151696), (152, 78842), (158, 75848), (304, 39421), (316, 37924), (499, 24016), (632, 18962), (998, 12008), (1264, 9481), (1501, 7984), (1996, 6004), (3002, 3992)]