21506616

素因数分解:

$2^3\times 3^2\times {\mathrm{281}}^1\times {\mathrm{1063}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 58509360

約数和(自身を除く): 37002744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 281, 562, 843, 1063, 1124, 1686, 2126, 2248, 2529, 3189, 3372, 4252, 5058, 6378, 6744, 8504, 9567, 10116, 12756, 19134, 20232, 25512, 38268, 76536, 298703, 597406, 896109, 1194812, 1792218, 2389624, 2688327, 3584436, 5376654, 7168872, 10753308, 21506616]

約数ペア:

[(1, 21506616), (2, 10753308), (3, 7168872), (4, 5376654), (6, 3584436), (8, 2688327), (9, 2389624), (12, 1792218), (18, 1194812), (24, 896109), (36, 597406), (72, 298703), (281, 76536), (562, 38268), (843, 25512), (1063, 20232), (1124, 19134), (1686, 12756), (2126, 10116), (2248, 9567), (2529, 8504), (3189, 6744), (3372, 6378), (4252, 5058)]