19516515

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 34667520

約数和(自身を除く): 15151005

約数列:

[1, 3, 5, 15, 19, 31, 47, 57, 93, 95, 141, 155, 235, 285, 465, 589, 705, 893, 1457, 1767, 2209, 2679, 2945, 4371, 4465, 6627, 7285, 8835, 11045, 13395, 21855, 27683, 33135, 41971, 68479, 83049, 125913, 138415, 205437, 209855, 342395, 415245, 629565, 1027185, 1301101, 3903303, 6505505, 19516515]

約数ペア:

[(1, 19516515), (3, 6505505), (5, 3903303), (15, 1301101), (19, 1027185), (31, 629565), (47, 415245), (57, 342395), (93, 209855), (95, 205437), (141, 138415), (155, 125913), (235, 83049), (285, 68479), (465, 41971), (589, 33135), (705, 27683), (893, 21855), (1457, 13395), (1767, 11045), (2209, 8835), (2679, 7285), (2945, 6627), (4371, 4465)]