18744348

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{163}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 51687552

約数和(自身を除く): 32943204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 74, 84, 111, 148, 163, 222, 259, 326, 444, 489, 518, 652, 777, 978, 1036, 1141, 1369, 1554, 1956, 2282, 2738, 3108, 3423, 4107, 4564, 5476, 6031, 6846, 8214, 9583, 12062, 13692, 16428, 18093, 19166, 24124, 28749, 36186, 38332, 42217, 57498, 72372, 84434, 114996, 126651, 168868, 223147, 253302, 446294, 506604, 669441, 892588, 1338882, 1562029, 2677764, 3124058, 4686087, 6248116, 9372174, 18744348]

約数ペア:

[(1, 18744348), (2, 9372174), (3, 6248116), (4, 4686087), (6, 3124058), (7, 2677764), (12, 1562029), (14, 1338882), (21, 892588), (28, 669441), (37, 506604), (42, 446294), (74, 253302), (84, 223147), (111, 168868), (148, 126651), (163, 114996), (222, 84434), (259, 72372), (326, 57498), (444, 42217), (489, 38332), (518, 36186), (652, 28749), (777, 24124), (978, 19166), (1036, 18093), (1141, 16428), (1369, 13692), (1554, 12062), (1956, 9583), (2282, 8214), (2738, 6846), (3108, 6031), (3423, 5476), (4107, 4564)]