19718809

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 22161600

約数和(自身を除く): 2442791

約数列:

[1, 11, 53, 149, 227, 583, 1639, 2497, 7897, 12031, 33823, 86867, 132341, 372053, 1792619, 19718809]

約数ペア:

[(1, 19718809), (11, 1792619), (53, 372053), (149, 132341), (227, 86867), (583, 33823), (1639, 12031), (2497, 7897)]