21974145

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 14521215

約数列:

[1, 3, 5, 15, 47, 71, 141, 213, 235, 355, 439, 705, 1065, 1317, 2195, 3337, 6585, 10011, 16685, 20633, 31169, 50055, 61899, 93507, 103165, 155845, 309495, 467535, 1464943, 4394829, 7324715, 21974145]

約数ペア:

[(1, 21974145), (3, 7324715), (5, 4394829), (15, 1464943), (47, 467535), (71, 309495), (141, 155845), (213, 103165), (235, 93507), (355, 61899), (439, 50055), (705, 31169), (1065, 20633), (1317, 16685), (2195, 10011), (3337, 6585)]