21905568

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{3307}}^1$

素因数の和:3346

約数の個数: 72

約数和(自身を含む): 65022048

約数和(自身を除く): 43116480

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 69, 72, 92, 96, 138, 144, 184, 207, 276, 288, 368, 414, 552, 736, 828, 1104, 1656, 2208, 3307, 3312, 6614, 6624, 9921, 13228, 19842, 26456, 29763, 39684, 52912, 59526, 76061, 79368, 105824, 119052, 152122, 158736, 228183, 238104, 304244, 317472, 456366, 476208, 608488, 684549, 912732, 952416, 1216976, 1369098, 1825464, 2433952, 2738196, 3650928, 5476392, 7301856, 10952784, 21905568]

約数ペア:

[(1, 21905568), (2, 10952784), (3, 7301856), (4, 5476392), (6, 3650928), (8, 2738196), (9, 2433952), (12, 1825464), (16, 1369098), (18, 1216976), (23, 952416), (24, 912732), (32, 684549), (36, 608488), (46, 476208), (48, 456366), (69, 317472), (72, 304244), (92, 238104), (96, 228183), (138, 158736), (144, 152122), (184, 119052), (207, 105824), (276, 79368), (288, 76061), (368, 59526), (414, 52912), (552, 39684), (736, 29763), (828, 26456), (1104, 19842), (1656, 13228), (2208, 9921), (3307, 6624), (3312, 6614)]