21186088

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 50065920

約数和(自身を除く): 28879832

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 163, 211, 308, 326, 422, 616, 652, 844, 1141, 1304, 1477, 1688, 1793, 2282, 2321, 2954, 3586, 4564, 4642, 5908, 7172, 9128, 9284, 11816, 12551, 14344, 16247, 18568, 25102, 32494, 34393, 50204, 64988, 68786, 100408, 129976, 137572, 240751, 275144, 378323, 481502, 756646, 963004, 1513292, 1926008, 2648261, 3026584, 5296522, 10593044, 21186088]

約数ペア:

[(1, 21186088), (2, 10593044), (4, 5296522), (7, 3026584), (8, 2648261), (11, 1926008), (14, 1513292), (22, 963004), (28, 756646), (44, 481502), (56, 378323), (77, 275144), (88, 240751), (154, 137572), (163, 129976), (211, 100408), (308, 68786), (326, 64988), (422, 50204), (616, 34393), (652, 32494), (844, 25102), (1141, 18568), (1304, 16247), (1477, 14344), (1688, 12551), (1793, 11816), (2282, 9284), (2321, 9128), (2954, 7172), (3586, 5908), (4564, 4642)]