21603028

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 19644332

約数列:

[1, 2, 4, 29, 43, 58, 61, 71, 86, 116, 122, 142, 172, 244, 284, 1247, 1769, 2059, 2494, 2623, 3053, 3538, 4118, 4331, 4988, 5246, 6106, 7076, 8236, 8662, 10492, 12212, 17324, 76067, 88537, 125599, 152134, 177074, 186233, 251198, 304268, 354148, 372466, 502396, 744932, 5400757, 10801514, 21603028]

約数ペア:

[(1, 21603028), (2, 10801514), (4, 5400757), (29, 744932), (43, 502396), (58, 372466), (61, 354148), (71, 304268), (86, 251198), (116, 186233), (122, 177074), (142, 152134), (172, 125599), (244, 88537), (284, 76067), (1247, 17324), (1769, 12212), (2059, 10492), (2494, 8662), (2623, 8236), (3053, 7076), (3538, 6106), (4118, 5246), (4331, 4988)]