21501072

素因数分解:

$2^4\times 3^3\times {\mathrm{71}}^1\times {\mathrm{701}}^1$

素因数の和:789

約数の個数: 80

約数和(自身を含む): 62674560

約数和(自身を除く): 41173488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 71, 72, 108, 142, 144, 213, 216, 284, 426, 432, 568, 639, 701, 852, 1136, 1278, 1402, 1704, 1917, 2103, 2556, 2804, 3408, 3834, 4206, 5112, 5608, 6309, 7668, 8412, 10224, 11216, 12618, 15336, 16824, 18927, 25236, 30672, 33648, 37854, 49771, 50472, 75708, 99542, 100944, 149313, 151416, 199084, 298626, 302832, 398168, 447939, 597252, 796336, 895878, 1194504, 1343817, 1791756, 2389008, 2687634, 3583512, 5375268, 7167024, 10750536, 21501072]

約数ペア:

[(1, 21501072), (2, 10750536), (3, 7167024), (4, 5375268), (6, 3583512), (8, 2687634), (9, 2389008), (12, 1791756), (16, 1343817), (18, 1194504), (24, 895878), (27, 796336), (36, 597252), (48, 447939), (54, 398168), (71, 302832), (72, 298626), (108, 199084), (142, 151416), (144, 149313), (213, 100944), (216, 99542), (284, 75708), (426, 50472), (432, 49771), (568, 37854), (639, 33648), (701, 30672), (852, 25236), (1136, 18927), (1278, 16824), (1402, 15336), (1704, 12618), (1917, 11216), (2103, 10224), (2556, 8412), (2804, 7668), (3408, 6309), (3834, 5608), (4206, 5112)]