7881993

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:374

約数の個数: 36

約数和(自身を含む): 13506948

約数和(自身を除く): 5624955

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 293, 427, 441, 549, 879, 1281, 2051, 2637, 2989, 3843, 6153, 8967, 14357, 17873, 18459, 26901, 43071, 53619, 125111, 129213, 160857, 375333, 875777, 1125999, 2627331, 7881993]

約数ペア:

[(1, 7881993), (3, 2627331), (7, 1125999), (9, 875777), (21, 375333), (49, 160857), (61, 129213), (63, 125111), (147, 53619), (183, 43071), (293, 26901), (427, 18459), (441, 17873), (549, 14357), (879, 8967), (1281, 6153), (2051, 3843), (2637, 2989)]