21975968

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:262

約数の個数: 96

約数和(自身を含む): 54432000

約数和(自身を除く): 32456032

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 29, 32, 34, 56, 58, 68, 112, 116, 119, 136, 199, 203, 224, 232, 238, 272, 398, 406, 464, 476, 493, 544, 796, 812, 928, 952, 986, 1393, 1592, 1624, 1904, 1972, 2786, 3184, 3248, 3383, 3451, 3808, 3944, 5572, 5771, 6368, 6496, 6766, 6902, 7888, 11144, 11542, 13532, 13804, 15776, 22288, 23084, 23681, 27064, 27608, 40397, 44576, 46168, 47362, 54128, 55216, 80794, 92336, 94724, 98107, 108256, 110432, 161588, 184672, 189448, 196214, 323176, 378896, 392428, 646352, 686749, 757792, 784856, 1292704, 1373498, 1569712, 2746996, 3139424, 5493992, 10987984, 21975968]

約数ペア:

[(1, 21975968), (2, 10987984), (4, 5493992), (7, 3139424), (8, 2746996), (14, 1569712), (16, 1373498), (17, 1292704), (28, 784856), (29, 757792), (32, 686749), (34, 646352), (56, 392428), (58, 378896), (68, 323176), (112, 196214), (116, 189448), (119, 184672), (136, 161588), (199, 110432), (203, 108256), (224, 98107), (232, 94724), (238, 92336), (272, 80794), (398, 55216), (406, 54128), (464, 47362), (476, 46168), (493, 44576), (544, 40397), (796, 27608), (812, 27064), (928, 23681), (952, 23084), (986, 22288), (1393, 15776), (1592, 13804), (1624, 13532), (1904, 11542), (1972, 11144), (2786, 7888), (3184, 6902), (3248, 6766), (3383, 6496), (3451, 6368), (3808, 5771), (3944, 5572)]