21489312

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 61895232

約数和(自身を除く): 40405920

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 67, 78, 96, 104, 134, 156, 201, 208, 257, 268, 312, 402, 416, 514, 536, 624, 771, 804, 871, 1028, 1072, 1248, 1542, 1608, 1742, 2056, 2144, 2613, 3084, 3216, 3341, 3484, 4112, 5226, 6168, 6432, 6682, 6968, 8224, 10023, 10452, 12336, 13364, 13936, 17219, 20046, 20904, 24672, 26728, 27872, 34438, 40092, 41808, 51657, 53456, 68876, 80184, 83616, 103314, 106912, 137752, 160368, 206628, 223847, 275504, 320736, 413256, 447694, 551008, 671541, 826512, 895388, 1343082, 1653024, 1790776, 2686164, 3581552, 5372328, 7163104, 10744656, 21489312]

約数ペア:

[(1, 21489312), (2, 10744656), (3, 7163104), (4, 5372328), (6, 3581552), (8, 2686164), (12, 1790776), (13, 1653024), (16, 1343082), (24, 895388), (26, 826512), (32, 671541), (39, 551008), (48, 447694), (52, 413256), (67, 320736), (78, 275504), (96, 223847), (104, 206628), (134, 160368), (156, 137752), (201, 106912), (208, 103314), (257, 83616), (268, 80184), (312, 68876), (402, 53456), (416, 51657), (514, 41808), (536, 40092), (624, 34438), (771, 27872), (804, 26728), (871, 24672), (1028, 20904), (1072, 20046), (1248, 17219), (1542, 13936), (1608, 13364), (1742, 12336), (2056, 10452), (2144, 10023), (2613, 8224), (3084, 6968), (3216, 6682), (3341, 6432), (3484, 6168), (4112, 5226)]