21653538

素因数分解:

$2^1\times 3^1\times {\mathrm{83}}^1\times {\mathrm{43481}}^1$

素因数の和:43569

約数の個数: 16

約数和(自身を含む): 43829856

約数和(自身を除く): 22176318

約数列:

[1, 2, 3, 6, 83, 166, 249, 498, 43481, 86962, 130443, 260886, 3608923, 7217846, 10826769, 21653538]

約数ペア:

[(1, 21653538), (2, 10826769), (3, 7217846), (6, 3608923), (83, 260886), (166, 130443), (249, 86962), (498, 43481)]