31784781

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:143

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 23511219

約数列:

[1, 3, 7, 17, 21, 23, 49, 51, 69, 79, 119, 147, 161, 237, 343, 357, 391, 483, 553, 833, 1029, 1127, 1173, 1343, 1659, 1817, 2499, 2737, 3381, 3871, 4029, 5451, 5831, 7889, 8211, 9401, 11613, 12719, 17493, 19159, 23667, 27097, 28203, 30889, 38157, 57477, 65807, 81291, 89033, 92667, 134113, 197421, 216223, 267099, 402339, 460649, 623231, 648669, 1381947, 1513561, 1869693, 4540683, 10594927, 31784781]

約数ペア:

[(1, 31784781), (3, 10594927), (7, 4540683), (17, 1869693), (21, 1513561), (23, 1381947), (49, 648669), (51, 623231), (69, 460649), (79, 402339), (119, 267099), (147, 216223), (161, 197421), (237, 134113), (343, 92667), (357, 89033), (391, 81291), (483, 65807), (553, 57477), (833, 38157), (1029, 30889), (1127, 28203), (1173, 27097), (1343, 23667), (1659, 19159), (1817, 17493), (2499, 12719), (2737, 11613), (3381, 9401), (3871, 8211), (4029, 7889), (5451, 5831)]