21012726

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{677}}^1\times {\mathrm{739}}^1$

素因数の和:1428

約数の個数: 32

約数和(自身を含む): 48165120

約数和(自身を除く): 27152394

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 677, 739, 1354, 1478, 2031, 2217, 4062, 4434, 4739, 5173, 9478, 10346, 14217, 15519, 28434, 31038, 500303, 1000606, 1500909, 3001818, 3502121, 7004242, 10506363, 21012726]

約数ペア:

[(1, 21012726), (2, 10506363), (3, 7004242), (6, 3502121), (7, 3001818), (14, 1500909), (21, 1000606), (42, 500303), (677, 31038), (739, 28434), (1354, 15519), (1478, 14217), (2031, 10346), (2217, 9478), (4062, 5173), (4434, 4739)]