21993688

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1109}}^1$

素因数の和:1219

約数の個数: 32

約数和(自身を含む): 43023600

約数和(自身を除く): 21029912

約数列:

[1, 2, 4, 8, 37, 67, 74, 134, 148, 268, 296, 536, 1109, 2218, 2479, 4436, 4958, 8872, 9916, 19832, 41033, 74303, 82066, 148606, 164132, 297212, 328264, 594424, 2749211, 5498422, 10996844, 21993688]

約数ペア:

[(1, 21993688), (2, 10996844), (4, 5498422), (8, 2749211), (37, 594424), (67, 328264), (74, 297212), (134, 164132), (148, 148606), (268, 82066), (296, 74303), (536, 41033), (1109, 19832), (2218, 9916), (2479, 8872), (4436, 4958)]