128440971

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{54679}}^1$

素因数の和:54720

約数の個数: 20

約数和(自身を含む): 198488400

約数和(自身を除く): 70047429

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 54679, 164037, 492111, 1476333, 1585691, 4428999, 4757073, 14271219, 42813657, 128440971]

約数ペア:

[(1, 128440971), (3, 42813657), (9, 14271219), (27, 4757073), (29, 4428999), (81, 1585691), (87, 1476333), (261, 492111), (783, 164037), (2349, 54679)]