21491358

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{2141}}^1$

素因数の和:2392

約数の個数: 32

約数和(自身を含む): 49351680

約数和(自身を除く): 27860322

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 239, 478, 717, 1434, 1673, 2141, 3346, 4282, 5019, 6423, 10038, 12846, 14987, 29974, 44961, 89922, 511699, 1023398, 1535097, 3070194, 3581893, 7163786, 10745679, 21491358]

約数ペア:

[(1, 21491358), (2, 10745679), (3, 7163786), (6, 3581893), (7, 3070194), (14, 1535097), (21, 1023398), (42, 511699), (239, 89922), (478, 44961), (717, 29974), (1434, 14987), (1673, 12846), (2141, 10038), (3346, 6423), (4282, 5019)]