13780485

素因数分解:

$3^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{821}}^1$

素因数の和:1205

約数の個数: 24

約数和(自身を含む): 23979384

約数和(自身を除く): 10198899

約数列:

[1, 3, 5, 9, 15, 45, 373, 821, 1119, 1865, 2463, 3357, 4105, 5595, 7389, 12315, 16785, 36945, 306233, 918699, 1531165, 2756097, 4593495, 13780485]

約数ペア:

[(1, 13780485), (3, 4593495), (5, 2756097), (9, 1531165), (15, 918699), (45, 306233), (373, 36945), (821, 16785), (1119, 12315), (1865, 7389), (2463, 5595), (3357, 4105)]