21842690

素因数分解:

$2^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{6599}}^1$

素因数の和:6937

約数の個数: 16

約数和(自身を含む): 39441600

約数和(自身を除く): 17598910

約数列:

[1, 2, 5, 10, 331, 662, 1655, 3310, 6599, 13198, 32995, 65990, 2184269, 4368538, 10921345, 21842690]

約数ペア:

[(1, 21842690), (2, 10921345), (5, 4368538), (10, 2184269), (331, 65990), (662, 32995), (1655, 13198), (3310, 6599)]