21502100

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{4057}}^1$

素因数の和:4124

約数の個数: 36

約数和(自身を含む): 47551644

約数和(自身を除く): 26049544

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 4057, 5300, 8114, 16228, 20285, 40570, 81140, 101425, 202850, 215021, 405700, 430042, 860084, 1075105, 2150210, 4300420, 5375525, 10751050, 21502100]

約数ペア:

[(1, 21502100), (2, 10751050), (4, 5375525), (5, 4300420), (10, 2150210), (20, 1075105), (25, 860084), (50, 430042), (53, 405700), (100, 215021), (106, 202850), (212, 101425), (265, 81140), (530, 40570), (1060, 20285), (1325, 16228), (2650, 8114), (4057, 5300)]