21353145

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1019}}^1$

素因数の和:1165

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 16248135

約数列:

[1, 3, 5, 11, 15, 33, 55, 127, 165, 381, 635, 1019, 1397, 1905, 3057, 4191, 5095, 6985, 11209, 15285, 20955, 33627, 56045, 129413, 168135, 388239, 647065, 1423543, 1941195, 4270629, 7117715, 21353145]

約数ペア:

[(1, 21353145), (3, 7117715), (5, 4270629), (11, 1941195), (15, 1423543), (33, 647065), (55, 388239), (127, 168135), (165, 129413), (381, 56045), (635, 33627), (1019, 20955), (1397, 15285), (1905, 11209), (3057, 6985), (4191, 5095)]