21393392

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70373}}^1$

素因数の和:70400

約数の個数: 20

約数和(自身を含む): 43631880

約数和(自身を除く): 22238488

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70373, 140746, 281492, 562984, 1125968, 1337087, 2674174, 5348348, 10696696, 21393392]

約数ペア:

[(1, 21393392), (2, 10696696), (4, 5348348), (8, 2674174), (16, 1337087), (19, 1125968), (38, 562984), (76, 281492), (152, 140746), (304, 70373)]