18887492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{8447}}^1$

素因数の和:8507

約数の個数: 24

約数和(自身を含む): 36427776

約数和(自身を除く): 17540284

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 8447, 16894, 33788, 109811, 219622, 363221, 439244, 726442, 1452884, 4721873, 9443746, 18887492]

約数ペア:

[(1, 18887492), (2, 9443746), (4, 4721873), (13, 1452884), (26, 726442), (43, 439244), (52, 363221), (86, 219622), (172, 109811), (559, 33788), (1118, 16894), (2236, 8447)]