21521120

素因数分解:

$2^5\times 5^1\times {\mathrm{134507}}^1$

素因数の和:134522

約数の個数: 24

約数和(自身を含む): 50844024

約数和(自身を除く): 29322904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 134507, 269014, 538028, 672535, 1076056, 1345070, 2152112, 2690140, 4304224, 5380280, 10760560, 21521120]

約数ペア:

[(1, 21521120), (2, 10760560), (4, 5380280), (5, 4304224), (8, 2690140), (10, 2152112), (16, 1345070), (20, 1076056), (32, 672535), (40, 538028), (80, 269014), (160, 134507)]