18979425

素因数分解:

$3^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{1259}}^1$

素因数の和:1342

約数の個数: 36

約数和(自身を含む): 34529040

約数和(自身を除く): 15549615

約数列:

[1, 3, 5, 9, 15, 25, 45, 67, 75, 201, 225, 335, 603, 1005, 1259, 1675, 3015, 3777, 5025, 6295, 11331, 15075, 18885, 31475, 56655, 84353, 94425, 253059, 283275, 421765, 759177, 1265295, 2108825, 3795885, 6326475, 18979425]

約数ペア:

[(1, 18979425), (3, 6326475), (5, 3795885), (9, 2108825), (15, 1265295), (25, 759177), (45, 421765), (67, 283275), (75, 253059), (201, 94425), (225, 84353), (335, 56655), (603, 31475), (1005, 18885), (1259, 15075), (1675, 11331), (3015, 6295), (3777, 5025)]