221363361

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{15797}}^1$

素因数の和:15982

約数の個数: 20

約数和(自身を含む): 332611092

約数和(自身を除く): 111247731

約数列:

[1, 3, 9, 27, 81, 173, 519, 1557, 4671, 14013, 15797, 47391, 142173, 426519, 1279557, 2732881, 8198643, 24595929, 73787787, 221363361]

約数ペア:

[(1, 221363361), (3, 73787787), (9, 24595929), (27, 8198643), (81, 2732881), (173, 1279557), (519, 426519), (1557, 142173), (4671, 47391), (14013, 15797)]