221517309

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{11159}}^1$

素因数の和:11684

約数の個数: 16

約数和(自身を含む): 318729600

約数和(自身を除く): 97212291

約数列:

[1, 3, 13, 39, 509, 1527, 6617, 11159, 19851, 33477, 145067, 435201, 5679931, 17039793, 73839103, 221517309]

約数ペア:

[(1, 221517309), (3, 73839103), (13, 17039793), (39, 5679931), (509, 435201), (1527, 145067), (6617, 33477), (11159, 19851)]