21791016

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:807

約数の個数: 96

約数和(自身を含む): 65694720

約数和(自身を除く): 43903704

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 31, 36, 39, 52, 62, 72, 78, 93, 104, 117, 124, 156, 186, 234, 248, 279, 312, 372, 403, 468, 558, 744, 751, 806, 936, 1116, 1209, 1502, 1612, 2232, 2253, 2418, 3004, 3224, 3627, 4506, 4836, 6008, 6759, 7254, 9012, 9672, 9763, 13518, 14508, 18024, 19526, 23281, 27036, 29016, 29289, 39052, 46562, 54072, 58578, 69843, 78104, 87867, 93124, 117156, 139686, 175734, 186248, 209529, 234312, 279372, 302653, 351468, 419058, 558744, 605306, 702936, 838116, 907959, 1210612, 1676232, 1815918, 2421224, 2723877, 3631836, 5447754, 7263672, 10895508, 21791016]

約数ペア:

[(1, 21791016), (2, 10895508), (3, 7263672), (4, 5447754), (6, 3631836), (8, 2723877), (9, 2421224), (12, 1815918), (13, 1676232), (18, 1210612), (24, 907959), (26, 838116), (31, 702936), (36, 605306), (39, 558744), (52, 419058), (62, 351468), (72, 302653), (78, 279372), (93, 234312), (104, 209529), (117, 186248), (124, 175734), (156, 139686), (186, 117156), (234, 93124), (248, 87867), (279, 78104), (312, 69843), (372, 58578), (403, 54072), (468, 46562), (558, 39052), (744, 29289), (751, 29016), (806, 27036), (936, 23281), (1116, 19526), (1209, 18024), (1502, 14508), (1612, 13518), (2232, 9763), (2253, 9672), (2418, 9012), (3004, 7254), (3224, 6759), (3627, 6008), (4506, 4836)]