21415792

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43177}}^1$

素因数の和:43216

約数の個数: 20

約数和(自身を含む): 42832576

約数和(自身を除く): 21416784

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43177, 86354, 172708, 345416, 690832, 1338487, 2676974, 5353948, 10707896, 21415792]

約数ペア:

[(1, 21415792), (2, 10707896), (4, 5353948), (8, 2676974), (16, 1338487), (31, 690832), (62, 345416), (124, 172708), (248, 86354), (496, 43177)]