21077706

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:451

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 27951414

約数列:

[1, 2, 3, 6, 13, 23, 26, 31, 39, 46, 62, 69, 78, 93, 138, 186, 299, 379, 403, 598, 713, 758, 806, 897, 1137, 1209, 1426, 1794, 2139, 2274, 2418, 4278, 4927, 8717, 9269, 9854, 11749, 14781, 17434, 18538, 23498, 26151, 27807, 29562, 35247, 52302, 55614, 70494, 113321, 152737, 226642, 270227, 305474, 339963, 458211, 540454, 679926, 810681, 916422, 1621362, 3512951, 7025902, 10538853, 21077706]

約数ペア:

[(1, 21077706), (2, 10538853), (3, 7025902), (6, 3512951), (13, 1621362), (23, 916422), (26, 810681), (31, 679926), (39, 540454), (46, 458211), (62, 339963), (69, 305474), (78, 270227), (93, 226642), (138, 152737), (186, 113321), (299, 70494), (379, 55614), (403, 52302), (598, 35247), (713, 29562), (758, 27807), (806, 26151), (897, 23498), (1137, 18538), (1209, 17434), (1426, 14781), (1794, 11749), (2139, 9854), (2274, 9269), (2418, 8717), (4278, 4927)]