30278997

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7879}}^1$

素因数の和:7953

約数の個数: 24

約数和(自身を含む): 50810240

約数和(自身を除く): 20531243

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 7879, 23637, 55153, 70911, 165459, 480619, 496377, 1441857, 3364333, 4325571, 10092999, 30278997]

約数ペア:

[(1, 30278997), (3, 10092999), (7, 4325571), (9, 3364333), (21, 1441857), (61, 496377), (63, 480619), (183, 165459), (427, 70911), (549, 55153), (1281, 23637), (3843, 7879)]