21983216

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:150

約数の個数: 80

約数和(自身を含む): 47996928

約数和(自身を除く): 26013712

約数列:

[1, 2, 4, 8, 16, 23, 31, 41, 46, 47, 62, 82, 92, 94, 124, 164, 184, 188, 248, 328, 368, 376, 496, 656, 713, 752, 943, 1081, 1271, 1426, 1457, 1886, 1927, 2162, 2542, 2852, 2914, 3772, 3854, 4324, 5084, 5704, 5828, 7544, 7708, 8648, 10168, 11408, 11656, 15088, 15416, 17296, 20336, 23312, 29233, 30832, 33511, 44321, 58466, 59737, 67022, 88642, 116932, 119474, 134044, 177284, 233864, 238948, 268088, 354568, 467728, 477896, 536176, 709136, 955792, 1373951, 2747902, 5495804, 10991608, 21983216]

約数ペア:

[(1, 21983216), (2, 10991608), (4, 5495804), (8, 2747902), (16, 1373951), (23, 955792), (31, 709136), (41, 536176), (46, 477896), (47, 467728), (62, 354568), (82, 268088), (92, 238948), (94, 233864), (124, 177284), (164, 134044), (184, 119474), (188, 116932), (248, 88642), (328, 67022), (368, 59737), (376, 58466), (496, 44321), (656, 33511), (713, 30832), (752, 29233), (943, 23312), (1081, 20336), (1271, 17296), (1426, 15416), (1457, 15088), (1886, 11656), (1927, 11408), (2162, 10168), (2542, 8648), (2852, 7708), (2914, 7544), (3772, 5828), (3854, 5704), (4324, 5084)]