17978265

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 33561216

約数和(自身を除く): 15582951

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 71, 85, 153, 213, 255, 331, 355, 639, 765, 993, 1065, 1207, 1655, 2979, 3195, 3621, 4965, 5627, 6035, 10863, 14895, 16881, 18105, 23501, 28135, 50643, 54315, 70503, 84405, 117505, 211509, 253215, 352515, 399517, 1057545, 1198551, 1997585, 3595653, 5992755, 17978265]

約数ペア:

[(1, 17978265), (3, 5992755), (5, 3595653), (9, 1997585), (15, 1198551), (17, 1057545), (45, 399517), (51, 352515), (71, 253215), (85, 211509), (153, 117505), (213, 84405), (255, 70503), (331, 54315), (355, 50643), (639, 28135), (765, 23501), (993, 18105), (1065, 16881), (1207, 14895), (1655, 10863), (2979, 6035), (3195, 5627), (3621, 4965)]