19963678

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:577

約数の個数: 48

約数和(自身を含む): 38561184

約数和(自身を除く): 18597506

約数列:

[1, 2, 7, 14, 17, 23, 34, 46, 49, 98, 119, 161, 238, 322, 391, 521, 782, 833, 1042, 1127, 1666, 2254, 2737, 3647, 5474, 7294, 8857, 11983, 17714, 19159, 23966, 25529, 38318, 51058, 61999, 83881, 123998, 167762, 203711, 407422, 433993, 587167, 867986, 1174334, 1425977, 2851954, 9981839, 19963678]

約数ペア:

[(1, 19963678), (2, 9981839), (7, 2851954), (14, 1425977), (17, 1174334), (23, 867986), (34, 587167), (46, 433993), (49, 407422), (98, 203711), (119, 167762), (161, 123998), (238, 83881), (322, 61999), (391, 51058), (521, 38318), (782, 25529), (833, 23966), (1042, 19159), (1127, 17714), (1666, 11983), (2254, 8857), (2737, 7294), (3647, 5474)]