21270100

素因数分解:

$2^2\times 5^2\times {\mathrm{212701}}^1$

素因数の和:212715

約数の個数: 18

約数和(自身を含む): 46156334

約数和(自身を除く): 24886234

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 212701, 425402, 850804, 1063505, 2127010, 4254020, 5317525, 10635050, 21270100]

約数ペア:

[(1, 21270100), (2, 10635050), (4, 5317525), (5, 4254020), (10, 2127010), (20, 1063505), (25, 850804), (50, 425402), (100, 212701)]