21630740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56923}}^1$

素因数の和:56951

約数の個数: 24

約数和(自身を含む): 47816160

約数和(自身を除く): 26185420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56923, 113846, 227692, 284615, 569230, 1081537, 1138460, 2163074, 4326148, 5407685, 10815370, 21630740]

約数ペア:

[(1, 21630740), (2, 10815370), (4, 5407685), (5, 4326148), (10, 2163074), (19, 1138460), (20, 1081537), (38, 569230), (76, 284615), (95, 227692), (190, 113846), (380, 56923)]