81710538

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{21379}}^1$

素因数の和:21411

約数の個数: 48

約数和(自身を含む): 204734880

約数和(自身を除く): 123024342

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 182, 273, 294, 546, 637, 1274, 1911, 3822, 21379, 42758, 64137, 128274, 149653, 277927, 299306, 448959, 555854, 833781, 897918, 1047571, 1667562, 1945489, 2095142, 3142713, 3890978, 5836467, 6285426, 11672934, 13618423, 27236846, 40855269, 81710538]

約数ペア:

[(1, 81710538), (2, 40855269), (3, 27236846), (6, 13618423), (7, 11672934), (13, 6285426), (14, 5836467), (21, 3890978), (26, 3142713), (39, 2095142), (42, 1945489), (49, 1667562), (78, 1047571), (91, 897918), (98, 833781), (147, 555854), (182, 448959), (273, 299306), (294, 277927), (546, 149653), (637, 128274), (1274, 64137), (1911, 42758), (3822, 21379)]