21302358045

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{204251}}^1$

素因数の和:204685

約数の個数: 32

約数和(自身を含む): 36177114240

約数和(自身を除く): 14874756195

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 409, 1227, 2045, 6135, 6953, 20859, 34765, 104295, 204251, 612753, 1021255, 3063765, 3472267, 10416801, 17361335, 52084005, 83538659, 250615977, 417693295, 1253079885, 1420157203, 4260471609, 7100786015, 21302358045]

約数ペア:

[(1, 21302358045), (3, 7100786015), (5, 4260471609), (15, 1420157203), (17, 1253079885), (51, 417693295), (85, 250615977), (255, 83538659), (409, 52084005), (1227, 17361335), (2045, 10416801), (6135, 3472267), (6953, 3063765), (20859, 1021255), (34765, 612753), (104295, 204251)]