20654115

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{457}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 34822656

約数和(自身を除く): 14168541

約数列:

[1, 3, 5, 15, 23, 69, 115, 131, 345, 393, 457, 655, 1371, 1965, 2285, 3013, 6855, 9039, 10511, 15065, 31533, 45195, 52555, 59867, 157665, 179601, 299335, 898005, 1376941, 4130823, 6884705, 20654115]

約数ペア:

[(1, 20654115), (3, 6884705), (5, 4130823), (15, 1376941), (23, 898005), (69, 299335), (115, 179601), (131, 157665), (345, 59867), (393, 52555), (457, 45195), (655, 31533), (1371, 15065), (1965, 10511), (2285, 9039), (3013, 6855)]