20115405981

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{64279}}^1$

素因数の和:64434

約数の個数: 48

約数和(自身を含む): 33091344000

約数和(自身を除く): 12975938019

約数列:

[1, 3, 9, 11, 29, 33, 87, 99, 109, 261, 319, 327, 957, 981, 1199, 2871, 3161, 3597, 9483, 10791, 28449, 34771, 64279, 104313, 192837, 312939, 578511, 707069, 1864091, 2121207, 5592273, 6363621, 7006411, 16776819, 20505001, 21019233, 61515003, 63057699, 77070521, 184545009, 203185919, 231211563, 609557757, 693634689, 1828673271, 2235045109, 6705135327, 20115405981]

約数ペア:

[(1, 20115405981), (3, 6705135327), (9, 2235045109), (11, 1828673271), (29, 693634689), (33, 609557757), (87, 231211563), (99, 203185919), (109, 184545009), (261, 77070521), (319, 63057699), (327, 61515003), (957, 21019233), (981, 20505001), (1199, 16776819), (2871, 7006411), (3161, 6363621), (3597, 5592273), (9483, 2121207), (10791, 1864091), (28449, 707069), (34771, 578511), (64279, 312939), (104313, 192837)]