21651242

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{1301}}^1$

素因数の和:1513

約数の個数: 16

約数和(自身を含む): 33325992

約数和(自身を除く): 11674750

約数列:

[1, 2, 53, 106, 157, 314, 1301, 2602, 8321, 16642, 68953, 137906, 204257, 408514, 10825621, 21651242]

約数ペア:

[(1, 21651242), (2, 10825621), (53, 408514), (106, 204257), (157, 137906), (314, 68953), (1301, 16642), (2602, 8321)]