71641827

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:429

約数の個数: 40

約数和(自身を含む): 111505856

約数和(自身を除く): 39864029

約数列:

[1, 3, 9, 27, 43, 67, 81, 129, 201, 307, 387, 603, 921, 1161, 1809, 2763, 2881, 3483, 5427, 8289, 8643, 13201, 20569, 24867, 25929, 39603, 61707, 77787, 118809, 185121, 233361, 356427, 555363, 884467, 1069281, 1666089, 2653401, 7960203, 23880609, 71641827]

約数ペア:

[(1, 71641827), (3, 23880609), (9, 7960203), (27, 2653401), (43, 1666089), (67, 1069281), (81, 884467), (129, 555363), (201, 356427), (307, 233361), (387, 185121), (603, 118809), (921, 77787), (1161, 61707), (1809, 39603), (2763, 25929), (2881, 24867), (3483, 20569), (5427, 13201), (8289, 8643)]