21097907885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{88237}}^1$

素因数の和:88385

約数の個数: 32

約数和(自身を含む): 28017329760

約数和(自身を除く): 6919421875

約数列:

[1, 5, 17, 29, 85, 97, 145, 485, 493, 1649, 2465, 2813, 8245, 14065, 47821, 88237, 239105, 441185, 1500029, 2558873, 7500145, 8558989, 12794365, 42794945, 43500841, 145502813, 217504205, 248210681, 727514065, 1241053405, 4219581577, 21097907885]

約数ペア:

[(1, 21097907885), (5, 4219581577), (17, 1241053405), (29, 727514065), (85, 248210681), (97, 217504205), (145, 145502813), (485, 43500841), (493, 42794945), (1649, 12794365), (2465, 8558989), (2813, 7500145), (8245, 2558873), (14065, 1500029), (47821, 441185), (88237, 239105)]