202198941

素因数分解:

$3^2\times 7^2\times {\mathrm{458501}}^1$

素因数の和:458521

約数の個数: 18

約数和(自身を含む): 339749982

約数和(自身を除く): 137551041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 458501, 1375503, 3209507, 4126509, 9628521, 22466549, 28885563, 67399647, 202198941]

約数ペア:

[(1, 202198941), (3, 67399647), (7, 28885563), (9, 22466549), (21, 9628521), (49, 4126509), (63, 3209507), (147, 1375503), (441, 458501)]