28213801

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 9110999

約数列:

[1, 7, 11, 23, 77, 89, 161, 179, 253, 623, 979, 1253, 1771, 1969, 2047, 4117, 6853, 13783, 14329, 15931, 22517, 28819, 45287, 111517, 157619, 175241, 317009, 366413, 1226687, 2564891, 4030543, 28213801]

約数ペア:

[(1, 28213801), (7, 4030543), (11, 2564891), (23, 1226687), (77, 366413), (89, 317009), (161, 175241), (179, 157619), (253, 111517), (623, 45287), (979, 28819), (1253, 22517), (1771, 15931), (1969, 14329), (2047, 13783), (4117, 6853)]