21310395

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9049}}^1$

素因数の和:9214

約数の個数: 16

約数和(自身を含む): 34317600

約数和(自身を除く): 13007205

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 9049, 27147, 45245, 135735, 1420693, 4262079, 7103465, 21310395]

約数ペア:

[(1, 21310395), (3, 7103465), (5, 4262079), (15, 1420693), (157, 135735), (471, 45245), (785, 27147), (2355, 9049)]