20964236

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{569}}^1$

素因数の和:785

約数の個数: 24

約数和(自身を含む): 37601760

約数和(自身を除く): 16637524

約数列:

[1, 2, 4, 61, 122, 151, 244, 302, 569, 604, 1138, 2276, 9211, 18422, 34709, 36844, 69418, 85919, 138836, 171838, 343676, 5241059, 10482118, 20964236]

約数ペア:

[(1, 20964236), (2, 10482118), (4, 5241059), (61, 343676), (122, 171838), (151, 138836), (244, 85919), (302, 69418), (569, 36844), (604, 34709), (1138, 18422), (2276, 9211)]