21984068

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1669}}^1$

素因数の和:1799

約数の個数: 24

約数和(自身を含む): 39979800

約数和(自身を除く): 17995732

約数列:

[1, 2, 4, 37, 74, 89, 148, 178, 356, 1669, 3293, 3338, 6586, 6676, 13172, 61753, 123506, 148541, 247012, 297082, 594164, 5496017, 10992034, 21984068]

約数ペア:

[(1, 21984068), (2, 10992034), (4, 5496017), (37, 594164), (74, 297082), (89, 247012), (148, 148541), (178, 123506), (356, 61753), (1669, 13172), (3293, 6676), (3338, 6586)]