20791218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21523}}^1$

素因数の和:21558

約数の個数: 32

約数和(自身を含む): 49591296

約数和(自身を除く): 28800078

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 966, 21523, 43046, 64569, 129138, 150661, 301322, 451983, 495029, 903966, 990058, 1485087, 2970174, 3465203, 6930406, 10395609, 20791218]

約数ペア:

[(1, 20791218), (2, 10395609), (3, 6930406), (6, 3465203), (7, 2970174), (14, 1485087), (21, 990058), (23, 903966), (42, 495029), (46, 451983), (69, 301322), (138, 150661), (161, 129138), (322, 64569), (483, 43046), (966, 21523)]