20216235

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2411}}^1$

素因数の和:2475

約数の個数: 32

約数和(自身を含む): 35659008

約数和(自身を除く): 15442773

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2411, 2795, 7233, 8385, 12055, 31343, 36165, 94029, 103673, 156715, 311019, 470145, 518365, 1347749, 1555095, 4043247, 6738745, 20216235]

約数ペア:

[(1, 20216235), (3, 6738745), (5, 4043247), (13, 1555095), (15, 1347749), (39, 518365), (43, 470145), (65, 311019), (129, 156715), (195, 103673), (215, 94029), (559, 36165), (645, 31343), (1677, 12055), (2411, 8385), (2795, 7233)]