172171521

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 283392000

約数和(自身を除く): 111220479

約数列:

[1, 3, 9, 19, 27, 29, 57, 71, 87, 163, 171, 213, 261, 489, 513, 551, 639, 783, 1349, 1467, 1653, 1917, 2059, 3097, 4047, 4401, 4727, 4959, 6177, 9291, 11573, 12141, 14181, 14877, 18531, 27873, 34719, 36423, 39121, 42543, 55593, 83619, 89813, 104157, 117363, 127629, 219887, 269439, 312471, 335617, 352089, 659661, 808317, 1006851, 1056267, 1978983, 2424951, 3020553, 5936949, 6376723, 9061659, 19130169, 57390507, 172171521]

約数ペア:

[(1, 172171521), (3, 57390507), (9, 19130169), (19, 9061659), (27, 6376723), (29, 5936949), (57, 3020553), (71, 2424951), (87, 1978983), (163, 1056267), (171, 1006851), (213, 808317), (261, 659661), (489, 352089), (513, 335617), (551, 312471), (639, 269439), (783, 219887), (1349, 127629), (1467, 117363), (1653, 104157), (1917, 89813), (2059, 83619), (3097, 55593), (4047, 42543), (4401, 39121), (4727, 36423), (4959, 34719), (6177, 27873), (9291, 18531), (11573, 14877), (12141, 14181)]