218751105

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{1481}}^1$

素因数の和:1761

約数の個数: 32

約数和(自身を含む): 359948160

約数和(自身を除く): 141197055

約数列:

[1, 3, 5, 15, 43, 129, 215, 229, 645, 687, 1145, 1481, 3435, 4443, 7405, 9847, 22215, 29541, 49235, 63683, 147705, 191049, 318415, 339149, 955245, 1017447, 1695745, 5087235, 14583407, 43750221, 72917035, 218751105]

約数ペア:

[(1, 218751105), (3, 72917035), (5, 43750221), (15, 14583407), (43, 5087235), (129, 1695745), (215, 1017447), (229, 955245), (645, 339149), (687, 318415), (1145, 191049), (1481, 147705), (3435, 63683), (4443, 49235), (7405, 29541), (9847, 22215)]