20949912

素因数分解:

$2^3\times 3^2\times {\mathrm{290971}}^1$

素因数の和:290983

約数の個数: 24

約数和(自身を含む): 56739540

約数和(自身を除く): 35789628

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 290971, 581942, 872913, 1163884, 1745826, 2327768, 2618739, 3491652, 5237478, 6983304, 10474956, 20949912]

約数ペア:

[(1, 20949912), (2, 10474956), (3, 6983304), (4, 5237478), (6, 3491652), (8, 2618739), (9, 2327768), (12, 1745826), (18, 1163884), (24, 872913), (36, 581942), (72, 290971)]