18884365

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 25505280

約数和(自身を除く): 6620915

約数列:

[1, 5, 17, 29, 47, 85, 145, 163, 235, 493, 799, 815, 1363, 2465, 2771, 3995, 4727, 6815, 7661, 13855, 23171, 23635, 38305, 80359, 115855, 130237, 222169, 401795, 651185, 1110845, 3776873, 18884365]

約数ペア:

[(1, 18884365), (5, 3776873), (17, 1110845), (29, 651185), (47, 401795), (85, 222169), (145, 130237), (163, 115855), (235, 80359), (493, 38305), (799, 23635), (815, 23171), (1363, 13855), (2465, 7661), (2771, 6815), (3995, 4727)]