21411864

素因数分解:

$2^3\times 3^4\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:382

約数の個数: 80

約数和(自身を含む): 60635520

約数和(自身を除く): 39223656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 173, 191, 216, 324, 346, 382, 519, 573, 648, 692, 764, 1038, 1146, 1384, 1528, 1557, 1719, 2076, 2292, 3114, 3438, 4152, 4584, 4671, 5157, 6228, 6876, 9342, 10314, 12456, 13752, 14013, 15471, 18684, 20628, 28026, 30942, 33043, 37368, 41256, 56052, 61884, 66086, 99129, 112104, 123768, 132172, 198258, 264344, 297387, 396516, 594774, 793032, 892161, 1189548, 1784322, 2379096, 2676483, 3568644, 5352966, 7137288, 10705932, 21411864]

約数ペア:

[(1, 21411864), (2, 10705932), (3, 7137288), (4, 5352966), (6, 3568644), (8, 2676483), (9, 2379096), (12, 1784322), (18, 1189548), (24, 892161), (27, 793032), (36, 594774), (54, 396516), (72, 297387), (81, 264344), (108, 198258), (162, 132172), (173, 123768), (191, 112104), (216, 99129), (324, 66086), (346, 61884), (382, 56052), (519, 41256), (573, 37368), (648, 33043), (692, 30942), (764, 28026), (1038, 20628), (1146, 18684), (1384, 15471), (1528, 14013), (1557, 13752), (1719, 12456), (2076, 10314), (2292, 9342), (3114, 6876), (3438, 6228), (4152, 5157), (4584, 4671)]