19818788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{3023}}^1$

素因数の和:3187

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 18283612

約数列:

[1, 2, 4, 11, 22, 44, 149, 298, 596, 1639, 3023, 3278, 6046, 6556, 12092, 33253, 66506, 133012, 450427, 900854, 1801708, 4954697, 9909394, 19818788]

約数ペア:

[(1, 19818788), (2, 9909394), (4, 4954697), (11, 1801708), (22, 900854), (44, 450427), (149, 133012), (298, 66506), (596, 33253), (1639, 12092), (3023, 6556), (3278, 6046)]