20178804849

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{70123}}^1$

素因数の和:70397

約数の個数: 32

約数和(自身を含む): 31343745024

約数和(自身を除く): 11164940175

約数列:

[1, 3, 7, 21, 71, 193, 213, 497, 579, 1351, 1491, 4053, 13703, 41109, 70123, 95921, 210369, 287763, 490861, 1472583, 4978733, 13533739, 14936199, 34851131, 40601217, 94736173, 104553393, 284208519, 960895469, 2882686407, 6726268283, 20178804849]

約数ペア:

[(1, 20178804849), (3, 6726268283), (7, 2882686407), (21, 960895469), (71, 284208519), (193, 104553393), (213, 94736173), (497, 40601217), (579, 34851131), (1351, 14936199), (1491, 13533739), (4053, 4978733), (13703, 1472583), (41109, 490861), (70123, 287763), (95921, 210369)]