21000944796

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7085339}}^1$

素因数の和:7085378

約数の個数: 48

約数和(自身を含む): 55549065600

約数和(自身を除く): 34548120804

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 7085339, 14170678, 21256017, 28341356, 42512034, 85024068, 92109407, 134621441, 184218814, 269242882, 276328221, 368437628, 403864323, 538485764, 552656442, 807728646, 1105312884, 1615457292, 1750078733, 3500157466, 5250236199, 7000314932, 10500472398, 21000944796]

約数ペア:

[(1, 21000944796), (2, 10500472398), (3, 7000314932), (4, 5250236199), (6, 3500157466), (12, 1750078733), (13, 1615457292), (19, 1105312884), (26, 807728646), (38, 552656442), (39, 538485764), (52, 403864323), (57, 368437628), (76, 276328221), (78, 269242882), (114, 184218814), (156, 134621441), (228, 92109407), (247, 85024068), (494, 42512034), (741, 28341356), (988, 21256017), (1482, 14170678), (2964, 7085339)]