18917661

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{739}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 30689280

約数和(自身を除く): 11771619

約数列:

[1, 3, 7, 21, 23, 53, 69, 159, 161, 371, 483, 739, 1113, 1219, 2217, 3657, 5173, 8533, 15519, 16997, 25599, 39167, 50991, 117501, 118979, 274169, 356937, 822507, 900841, 2702523, 6305887, 18917661]

約数ペア:

[(1, 18917661), (3, 6305887), (7, 2702523), (21, 900841), (23, 822507), (53, 356937), (69, 274169), (159, 118979), (161, 117501), (371, 50991), (483, 39167), (739, 25599), (1113, 16997), (1219, 15519), (2217, 8533), (3657, 5173)]