20996858984

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{545543}}^1$

素因数の和:545849

約数の個数: 32

約数和(自身を含む): 41832313920

約数和(自身を除く): 20835454936

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 283, 566, 1132, 2264, 4811, 9622, 19244, 38488, 545543, 1091086, 2182172, 4364344, 9274231, 18548462, 37096924, 74193848, 154388669, 308777338, 617554676, 1235109352, 2624607373, 5249214746, 10498429492, 20996858984]

約数ペア:

[(1, 20996858984), (2, 10498429492), (4, 5249214746), (8, 2624607373), (17, 1235109352), (34, 617554676), (68, 308777338), (136, 154388669), (283, 74193848), (566, 37096924), (1132, 18548462), (2264, 9274231), (4811, 4364344), (9622, 2182172), (19244, 1091086), (38488, 545543)]