21306708

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{3631}}^1$

素因数の和:3804

約数の個数: 36

約数和(自身を含む): 54203968

約数和(自身を除く): 32897260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 978, 1467, 1956, 2934, 3631, 5868, 7262, 10893, 14524, 21786, 32679, 43572, 65358, 130716, 591853, 1183706, 1775559, 2367412, 3551118, 5326677, 7102236, 10653354, 21306708]

約数ペア:

[(1, 21306708), (2, 10653354), (3, 7102236), (4, 5326677), (6, 3551118), (9, 2367412), (12, 1775559), (18, 1183706), (36, 591853), (163, 130716), (326, 65358), (489, 43572), (652, 32679), (978, 21786), (1467, 14524), (1956, 10893), (2934, 7262), (3631, 5868)]