21101968

素因数分解:

$2^4\times {\mathrm{683}}^1\times {\mathrm{1931}}^1$

素因数の和:2622

約数の個数: 20

約数和(自身を含む): 40966128

約数和(自身を除く): 19864160

約数列:

[1, 2, 4, 8, 16, 683, 1366, 1931, 2732, 3862, 5464, 7724, 10928, 15448, 30896, 1318873, 2637746, 5275492, 10550984, 21101968]

約数ペア:

[(1, 21101968), (2, 10550984), (4, 5275492), (8, 2637746), (16, 1318873), (683, 30896), (1366, 15448), (1931, 10928), (2732, 7724), (3862, 5464)]