17381721

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 28957824

約数和(自身を除く): 11576103

約数列:

[1, 3, 7, 21, 23, 49, 53, 69, 97, 147, 159, 161, 291, 371, 483, 679, 1113, 1127, 1219, 2037, 2231, 2597, 3381, 3657, 4753, 5141, 6693, 7791, 8533, 14259, 15423, 15617, 25599, 35987, 46851, 59731, 107961, 109319, 118243, 179193, 251909, 327957, 354729, 755727, 827701, 2483103, 5793907, 17381721]

約数ペア:

[(1, 17381721), (3, 5793907), (7, 2483103), (21, 827701), (23, 755727), (49, 354729), (53, 327957), (69, 251909), (97, 179193), (147, 118243), (159, 109319), (161, 107961), (291, 59731), (371, 46851), (483, 35987), (679, 25599), (1113, 15617), (1127, 15423), (1219, 14259), (2037, 8533), (2231, 7791), (2597, 6693), (3381, 5141), (3657, 4753)]