21000944818

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{6276433}}^1$

素因数の和:6276681

約数の個数: 16

約数和(自身を含む): 36152259840

約数和(自身を除く): 15151315022

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 6276433, 12552866, 43935031, 87870062, 1500067487, 3000134974, 10500472409, 21000944818]

約数ペア:

[(1, 21000944818), (2, 10500472409), (7, 3000134974), (14, 1500067487), (239, 87870062), (478, 43935031), (1673, 12552866), (3346, 6276433)]