19706715

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{857}}^1$

素因数の和:948

約数の個数: 48

約数和(自身を含む): 39619008

約数和(自身を除く): 19912293

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 73, 105, 219, 315, 365, 511, 657, 857, 1095, 1533, 2555, 2571, 3285, 4285, 4599, 5999, 7665, 7713, 12855, 17997, 22995, 29995, 38565, 53991, 62561, 89985, 187683, 269955, 312805, 437927, 563049, 938415, 1313781, 2189635, 2815245, 3941343, 6568905, 19706715]

約数ペア:

[(1, 19706715), (3, 6568905), (5, 3941343), (7, 2815245), (9, 2189635), (15, 1313781), (21, 938415), (35, 563049), (45, 437927), (63, 312805), (73, 269955), (105, 187683), (219, 89985), (315, 62561), (365, 53991), (511, 38565), (657, 29995), (857, 22995), (1095, 17997), (1533, 12855), (2555, 7713), (2571, 7665), (3285, 5999), (4285, 4599)]