20508858

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1$

素因数の和:527

約数の個数: 48

約数和(自身を含む): 46542600

約数和(自身を除く): 26033742

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 101, 174, 202, 261, 303, 389, 522, 606, 778, 909, 1167, 1818, 2334, 2929, 3501, 5858, 7002, 8787, 11281, 17574, 22562, 26361, 33843, 39289, 52722, 67686, 78578, 101529, 117867, 203058, 235734, 353601, 707202, 1139381, 2278762, 3418143, 6836286, 10254429, 20508858]

約数ペア:

[(1, 20508858), (2, 10254429), (3, 6836286), (6, 3418143), (9, 2278762), (18, 1139381), (29, 707202), (58, 353601), (87, 235734), (101, 203058), (174, 117867), (202, 101529), (261, 78578), (303, 67686), (389, 52722), (522, 39289), (606, 33843), (778, 26361), (909, 22562), (1167, 17574), (1818, 11281), (2334, 8787), (2929, 7002), (3501, 5858)]