19173399

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1319

約数の個数: 32

約数和(自身を含む): 31680000

約数和(自身を除く): 12506601

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 1249, 2193, 3747, 5117, 8743, 15351, 21233, 26229, 53707, 63699, 148631, 161121, 375949, 445893, 913019, 1127847, 2739057, 6391133, 19173399]

約数ペア:

[(1, 19173399), (3, 6391133), (7, 2739057), (17, 1127847), (21, 913019), (43, 445893), (51, 375949), (119, 161121), (129, 148631), (301, 63699), (357, 53707), (731, 26229), (903, 21233), (1249, 15351), (2193, 8743), (3747, 5117)]