31047585

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2965

約数の個数: 32

約数和(自身を含む): 53526528

約数和(自身を除く): 22478943

約数列:

[1, 3, 5, 15, 23, 31, 69, 93, 115, 155, 345, 465, 713, 2139, 2903, 3565, 8709, 10695, 14515, 43545, 66769, 89993, 200307, 269979, 333845, 449965, 1001535, 1349895, 2069839, 6209517, 10349195, 31047585]

約数ペア:

[(1, 31047585), (3, 10349195), (5, 6209517), (15, 2069839), (23, 1349895), (31, 1001535), (69, 449965), (93, 333845), (115, 269979), (155, 200307), (345, 89993), (465, 66769), (713, 43545), (2139, 14515), (2903, 10695), (3565, 8709)]