21163544

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{571}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 41081040

約数和(自身を除く): 19917496

約数列:

[1, 2, 4, 8, 41, 82, 113, 164, 226, 328, 452, 571, 904, 1142, 2284, 4568, 4633, 9266, 18532, 23411, 37064, 46822, 64523, 93644, 129046, 187288, 258092, 516184, 2645443, 5290886, 10581772, 21163544]

約数ペア:

[(1, 21163544), (2, 10581772), (4, 5290886), (8, 2645443), (41, 516184), (82, 258092), (113, 187288), (164, 129046), (226, 93644), (328, 64523), (452, 46822), (571, 37064), (904, 23411), (1142, 18532), (2284, 9266), (4568, 4633)]