21375554

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{3163}}^1$

素因数の和:3305

約数の個数: 16

約数和(自身を含む): 33411840

約数和(自身を除く): 12036286

約数列:

[1, 2, 31, 62, 109, 218, 3163, 3379, 6326, 6758, 98053, 196106, 344767, 689534, 10687777, 21375554]

約数ペア:

[(1, 21375554), (2, 10687777), (31, 689534), (62, 344767), (109, 196106), (218, 98053), (3163, 6758), (3379, 6326)]