7220997

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1879}}^1$

素因数の和:1953

約数の個数: 24

約数和(自身を含む): 12122240

約数和(自身を除く): 4901243

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 1879, 3843, 5637, 13153, 16911, 39459, 114619, 118377, 343857, 802333, 1031571, 2406999, 7220997]

約数ペア:

[(1, 7220997), (3, 2406999), (7, 1031571), (9, 802333), (21, 343857), (61, 118377), (63, 114619), (183, 39459), (427, 16911), (549, 13153), (1281, 5637), (1879, 3843)]