21732568

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 48575520

約数和(自身を除く): 26842952

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 121, 143, 157, 242, 286, 314, 484, 572, 628, 968, 1144, 1256, 1331, 1573, 1727, 2041, 2662, 3146, 3454, 4082, 5324, 6292, 6908, 8164, 10648, 12584, 13816, 16328, 17303, 18997, 22451, 34606, 37994, 44902, 69212, 75988, 89804, 138424, 151976, 179608, 208967, 246961, 417934, 493922, 835868, 987844, 1671736, 1975688, 2716571, 5433142, 10866284, 21732568]

約数ペア:

[(1, 21732568), (2, 10866284), (4, 5433142), (8, 2716571), (11, 1975688), (13, 1671736), (22, 987844), (26, 835868), (44, 493922), (52, 417934), (88, 246961), (104, 208967), (121, 179608), (143, 151976), (157, 138424), (242, 89804), (286, 75988), (314, 69212), (484, 44902), (572, 37994), (628, 34606), (968, 22451), (1144, 18997), (1256, 17303), (1331, 16328), (1573, 13816), (1727, 12584), (2041, 10648), (2662, 8164), (3146, 6908), (3454, 6292), (4082, 5324)]