21167978619

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{617}}^1\times {\mathrm{1699}}^1$

素因数の和:2499

約数の個数: 32

約数和(自身を含む): 29046988800

約数和(自身を除く): 7879010181

約数列:

[1, 3, 53, 127, 159, 381, 617, 1699, 1851, 5097, 6731, 20193, 32701, 78359, 90047, 98103, 215773, 235077, 270141, 647319, 1048283, 3144849, 4153027, 11435969, 12459081, 34307907, 55558999, 133131941, 166676997, 399395823, 7055992873, 21167978619]

約数ペア:

[(1, 21167978619), (3, 7055992873), (53, 399395823), (127, 166676997), (159, 133131941), (381, 55558999), (617, 34307907), (1699, 12459081), (1851, 11435969), (5097, 4153027), (6731, 3144849), (20193, 1048283), (32701, 647319), (78359, 270141), (90047, 235077), (98103, 215773)]