19747404

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{787}}^1$

素因数の和:855

約数の個数: 72

約数和(自身を含む): 54211248

約数和(自身を除く): 34463844

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 41, 51, 68, 82, 102, 123, 153, 164, 204, 246, 306, 369, 492, 612, 697, 738, 787, 1394, 1476, 1574, 2091, 2361, 2788, 3148, 4182, 4722, 6273, 7083, 8364, 9444, 12546, 13379, 14166, 25092, 26758, 28332, 32267, 40137, 53516, 64534, 80274, 96801, 120411, 129068, 160548, 193602, 240822, 290403, 387204, 481644, 548539, 580806, 1097078, 1161612, 1645617, 2194156, 3291234, 4936851, 6582468, 9873702, 19747404]

約数ペア:

[(1, 19747404), (2, 9873702), (3, 6582468), (4, 4936851), (6, 3291234), (9, 2194156), (12, 1645617), (17, 1161612), (18, 1097078), (34, 580806), (36, 548539), (41, 481644), (51, 387204), (68, 290403), (82, 240822), (102, 193602), (123, 160548), (153, 129068), (164, 120411), (204, 96801), (246, 80274), (306, 64534), (369, 53516), (492, 40137), (612, 32267), (697, 28332), (738, 26758), (787, 25092), (1394, 14166), (1476, 13379), (1574, 12546), (2091, 9444), (2361, 8364), (2788, 7083), (3148, 6273), (4182, 4722)]