21903910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1483}}^1$

素因数の和:1708

約数の個数: 32

約数和(自身を含む): 45303552

約数和(自身を除く): 23399642

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1477, 1483, 2110, 2954, 2966, 7385, 7415, 10381, 14770, 14830, 20762, 51905, 103810, 312913, 625826, 1564565, 2190391, 3129130, 4380782, 10951955, 21903910]

約数ペア:

[(1, 21903910), (2, 10951955), (5, 4380782), (7, 3129130), (10, 2190391), (14, 1564565), (35, 625826), (70, 312913), (211, 103810), (422, 51905), (1055, 20762), (1477, 14830), (1483, 14770), (2110, 10381), (2954, 7415), (2966, 7385)]