16618325

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{523}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 21831936

約数和(自身を除く): 5213611

約数列:

[1, 5, 25, 31, 41, 155, 205, 523, 775, 1025, 1271, 2615, 6355, 13075, 16213, 21443, 31775, 81065, 107215, 405325, 536075, 664733, 3323665, 16618325]

約数ペア:

[(1, 16618325), (5, 3323665), (25, 664733), (31, 536075), (41, 405325), (155, 107215), (205, 81065), (523, 31775), (775, 21443), (1025, 16213), (1271, 13075), (2615, 6355)]