20798684

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 40824000

約数和(自身を除く): 20025316

約数列:

[1, 2, 4, 17, 29, 34, 53, 58, 68, 106, 116, 199, 212, 398, 493, 796, 901, 986, 1537, 1802, 1972, 3074, 3383, 3604, 5771, 6148, 6766, 10547, 11542, 13532, 21094, 23084, 26129, 42188, 52258, 98107, 104516, 179299, 196214, 305863, 358598, 392428, 611726, 717196, 1223452, 5199671, 10399342, 20798684]

約数ペア:

[(1, 20798684), (2, 10399342), (4, 5199671), (17, 1223452), (29, 717196), (34, 611726), (53, 392428), (58, 358598), (68, 305863), (106, 196214), (116, 179299), (199, 104516), (212, 98107), (398, 52258), (493, 42188), (796, 26129), (901, 23084), (986, 21094), (1537, 13532), (1802, 11542), (1972, 10547), (3074, 6766), (3383, 6148), (3604, 5771)]