19712909145

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^2\times {\mathrm{11393}}^1$

素因数の和:11554

約数の個数: 48

約数和(自身を含む): 33103489536

約数和(自身を除く): 13390580391

約数列:

[1, 3, 5, 15, 31, 61, 93, 155, 183, 305, 465, 915, 1891, 3721, 5673, 9455, 11163, 11393, 18605, 28365, 34179, 55815, 56965, 115351, 170895, 346053, 353183, 576755, 694973, 1059549, 1730265, 1765915, 2084919, 3474865, 5297745, 10424595, 21544163, 42393353, 64632489, 107720815, 127180059, 211966765, 323162445, 635900295, 1314193943, 3942581829, 6570969715, 19712909145]

約数ペア:

[(1, 19712909145), (3, 6570969715), (5, 3942581829), (15, 1314193943), (31, 635900295), (61, 323162445), (93, 211966765), (155, 127180059), (183, 107720815), (305, 64632489), (465, 42393353), (915, 21544163), (1891, 10424595), (3721, 5297745), (5673, 3474865), (9455, 2084919), (11163, 1765915), (11393, 1730265), (18605, 1059549), (28365, 694973), (34179, 576755), (55815, 353183), (56965, 346053), (115351, 170895)]