215915979

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{41387}}^1$

素因数の和:41474

約数の個数: 16

約数和(自身を含む): 301966848

約数和(自身を除く): 86050869

約数列:

[1, 3, 37, 47, 111, 141, 1739, 5217, 41387, 124161, 1531319, 1945189, 4593957, 5835567, 71971993, 215915979]

約数ペア:

[(1, 215915979), (3, 71971993), (37, 5835567), (47, 4593957), (111, 1945189), (141, 1531319), (1739, 124161), (5217, 41387)]