21365718153

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1\times {\mathrm{38153}}^1$

素因数の和:38425

約数の個数: 32

約数和(自身を含む): 31228896384

約数和(自身を除く): 9863178231

約数列:

[1, 3, 13, 39, 83, 173, 249, 519, 1079, 2249, 3237, 6747, 14359, 38153, 43077, 114459, 186667, 495989, 560001, 1487967, 3166699, 6600469, 9500097, 19801407, 41167087, 85806097, 123501261, 257418291, 547838927, 1643516781, 7121906051, 21365718153]

約数ペア:

[(1, 21365718153), (3, 7121906051), (13, 1643516781), (39, 547838927), (83, 257418291), (173, 123501261), (249, 85806097), (519, 41167087), (1079, 19801407), (2249, 9500097), (3237, 6600469), (6747, 3166699), (14359, 1487967), (38153, 560001), (43077, 495989), (114459, 186667)]