201910891

素因数分解:

$7^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{691}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 263513600

約数和(自身を除く): 61602709

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 691, 1183, 1729, 2197, 3211, 4837, 8983, 13129, 15379, 22477, 41743, 62881, 91903, 116779, 170677, 292201, 817453, 1194739, 1518127, 2218801, 10626889, 15531607, 28844413, 201910891]

約数ペア:

[(1, 201910891), (7, 28844413), (13, 15531607), (19, 10626889), (91, 2218801), (133, 1518127), (169, 1194739), (247, 817453), (691, 292201), (1183, 170677), (1729, 116779), (2197, 91903), (3211, 62881), (4837, 41743), (8983, 22477), (13129, 15379)]