71209215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20551}}^1$

素因数の和:20580

約数の個数: 48

約数和(自身を含む): 153893376

約数和(自身を除く): 82684161

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 20551, 61653, 102755, 143857, 184959, 226061, 308265, 431571, 678183, 719285, 924795, 1130305, 1294713, 1582427, 2034549, 2157855, 3390915, 4747281, 6473565, 7912135, 10172745, 14241843, 23736405, 71209215]

約数ペア:

[(1, 71209215), (3, 23736405), (5, 14241843), (7, 10172745), (9, 7912135), (11, 6473565), (15, 4747281), (21, 3390915), (33, 2157855), (35, 2034549), (45, 1582427), (55, 1294713), (63, 1130305), (77, 924795), (99, 719285), (105, 678183), (165, 431571), (231, 308265), (315, 226061), (385, 184959), (495, 143857), (693, 102755), (1155, 61653), (3465, 20551)]