27978327

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 46807488

約数和(自身を除く): 18829161

約数列:

[1, 3, 9, 13, 23, 37, 39, 69, 111, 117, 207, 281, 299, 333, 481, 843, 851, 897, 1443, 2529, 2553, 2691, 3653, 4329, 6463, 7659, 10397, 10959, 11063, 19389, 31191, 32877, 33189, 58167, 84019, 93573, 99567, 135161, 239131, 252057, 405483, 717393, 756171, 1216449, 2152179, 3108703, 9326109, 27978327]

約数ペア:

[(1, 27978327), (3, 9326109), (9, 3108703), (13, 2152179), (23, 1216449), (37, 756171), (39, 717393), (69, 405483), (111, 252057), (117, 239131), (207, 135161), (281, 99567), (299, 93573), (333, 84019), (481, 58167), (843, 33189), (851, 32877), (897, 31191), (1443, 19389), (2529, 11063), (2553, 10959), (2691, 10397), (3653, 7659), (4329, 6463)]