20403465

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 33962880

約数和(自身を除く): 13559415

約数列:

[1, 3, 5, 15, 37, 97, 111, 185, 291, 379, 485, 555, 1137, 1455, 1895, 3589, 5685, 10767, 14023, 17945, 36763, 42069, 53835, 70115, 110289, 183815, 210345, 551445, 1360231, 4080693, 6801155, 20403465]

約数ペア:

[(1, 20403465), (3, 6801155), (5, 4080693), (15, 1360231), (37, 551445), (97, 210345), (111, 183815), (185, 110289), (291, 70115), (379, 53835), (485, 42069), (555, 36763), (1137, 17945), (1455, 14023), (1895, 10767), (3589, 5685)]