18820635

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 31164672

約数和(自身を除く): 12344037

約数列:

[1, 3, 5, 15, 61, 67, 183, 201, 305, 307, 335, 915, 921, 1005, 1535, 4087, 4605, 12261, 18727, 20435, 20569, 56181, 61305, 61707, 93635, 102845, 280905, 308535, 1254709, 3764127, 6273545, 18820635]

約数ペア:

[(1, 18820635), (3, 6273545), (5, 3764127), (15, 1254709), (61, 308535), (67, 280905), (183, 102845), (201, 93635), (305, 61707), (307, 61305), (335, 56181), (915, 20569), (921, 20435), (1005, 18727), (1535, 12261), (4087, 4605)]