21332493

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^2$

素因数の和:155

約数の個数: 54

約数和(自身を含む): 39244842

約数和(自身を除く): 17912349

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 61, 63, 91, 117, 147, 183, 273, 427, 441, 549, 637, 793, 819, 1281, 1911, 2379, 2989, 3721, 3843, 5551, 5733, 7137, 8967, 11163, 16653, 26047, 26901, 33489, 38857, 48373, 49959, 78141, 116571, 145119, 182329, 234423, 338611, 349713, 435357, 546987, 1015833, 1640961, 2370277, 3047499, 7110831, 21332493]

約数ペア:

[(1, 21332493), (3, 7110831), (7, 3047499), (9, 2370277), (13, 1640961), (21, 1015833), (39, 546987), (49, 435357), (61, 349713), (63, 338611), (91, 234423), (117, 182329), (147, 145119), (183, 116571), (273, 78141), (427, 49959), (441, 48373), (549, 38857), (637, 33489), (793, 26901), (819, 26047), (1281, 16653), (1911, 11163), (2379, 8967), (2989, 7137), (3721, 5733), (3843, 5551)]