20911554

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 28336446

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 113, 138, 149, 207, 226, 298, 339, 414, 447, 621, 678, 894, 1017, 1242, 1341, 2034, 2599, 2682, 3051, 3427, 4023, 5198, 6102, 6854, 7797, 8046, 10281, 15594, 16837, 20562, 23391, 30843, 33674, 46782, 50511, 61686, 70173, 92529, 101022, 140346, 151533, 185058, 303066, 387251, 454599, 774502, 909198, 1161753, 2323506, 3485259, 6970518, 10455777, 20911554]

約数ペア:

[(1, 20911554), (2, 10455777), (3, 6970518), (6, 3485259), (9, 2323506), (18, 1161753), (23, 909198), (27, 774502), (46, 454599), (54, 387251), (69, 303066), (113, 185058), (138, 151533), (149, 140346), (207, 101022), (226, 92529), (298, 70173), (339, 61686), (414, 50511), (447, 46782), (621, 33674), (678, 30843), (894, 23391), (1017, 20562), (1242, 16837), (1341, 15594), (2034, 10281), (2599, 8046), (2682, 7797), (3051, 6854), (3427, 6102), (4023, 5198)]