19657131

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 29675520

約数和(自身を除く): 10018389

約数列:

[1, 3, 13, 31, 39, 71, 93, 213, 229, 403, 687, 923, 1209, 2201, 2769, 2977, 6603, 7099, 8931, 16259, 21297, 28613, 48777, 85839, 92287, 211367, 276861, 504029, 634101, 1512087, 6552377, 19657131]

約数ペア:

[(1, 19657131), (3, 6552377), (13, 1512087), (31, 634101), (39, 504029), (71, 276861), (93, 211367), (213, 92287), (229, 85839), (403, 48777), (687, 28613), (923, 21297), (1209, 16259), (2201, 8931), (2769, 7099), (2977, 6603)]