21231470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{739}}^1$

素因数の和:789

約数の個数: 48

約数和(自身を含む): 43876080

約数和(自身を除く): 22644610

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 739, 845, 1105, 1478, 1690, 2210, 2873, 3695, 5746, 7390, 9607, 12563, 14365, 19214, 25126, 28730, 48035, 62815, 96070, 124891, 125630, 163319, 249782, 326638, 624455, 816595, 1248910, 1633190, 2123147, 4246294, 10615735, 21231470]

約数ペア:

[(1, 21231470), (2, 10615735), (5, 4246294), (10, 2123147), (13, 1633190), (17, 1248910), (26, 816595), (34, 624455), (65, 326638), (85, 249782), (130, 163319), (169, 125630), (170, 124891), (221, 96070), (338, 62815), (442, 48035), (739, 28730), (845, 25126), (1105, 19214), (1478, 14365), (1690, 12563), (2210, 9607), (2873, 7390), (3695, 5746)]