20984412

素因数分解:

$2^2\times 3^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{277}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 50440320

約数和(自身を除く): 29455908

約数列:

[1, 2, 3, 4, 6, 12, 59, 107, 118, 177, 214, 236, 277, 321, 354, 428, 554, 642, 708, 831, 1108, 1284, 1662, 3324, 6313, 12626, 16343, 18939, 25252, 29639, 32686, 37878, 49029, 59278, 65372, 75756, 88917, 98058, 118556, 177834, 196116, 355668, 1748701, 3497402, 5246103, 6994804, 10492206, 20984412]

約数ペア:

[(1, 20984412), (2, 10492206), (3, 6994804), (4, 5246103), (6, 3497402), (12, 1748701), (59, 355668), (107, 196116), (118, 177834), (177, 118556), (214, 98058), (236, 88917), (277, 75756), (321, 65372), (354, 59278), (428, 49029), (554, 37878), (642, 32686), (708, 29639), (831, 25252), (1108, 18939), (1284, 16343), (1662, 12626), (3324, 6313)]