20688444

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1549}}^1$

素因数の和:1619

約数の個数: 72

約数和(自身を含む): 60933600

約数和(自身を除く): 40245156

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 53, 63, 84, 106, 126, 159, 212, 252, 318, 371, 477, 636, 742, 954, 1113, 1484, 1549, 1908, 2226, 3098, 3339, 4452, 4647, 6196, 6678, 9294, 10843, 13356, 13941, 18588, 21686, 27882, 32529, 43372, 55764, 65058, 82097, 97587, 130116, 164194, 195174, 246291, 328388, 390348, 492582, 574679, 738873, 985164, 1149358, 1477746, 1724037, 2298716, 2955492, 3448074, 5172111, 6896148, 10344222, 20688444]

約数ペア:

[(1, 20688444), (2, 10344222), (3, 6896148), (4, 5172111), (6, 3448074), (7, 2955492), (9, 2298716), (12, 1724037), (14, 1477746), (18, 1149358), (21, 985164), (28, 738873), (36, 574679), (42, 492582), (53, 390348), (63, 328388), (84, 246291), (106, 195174), (126, 164194), (159, 130116), (212, 97587), (252, 82097), (318, 65058), (371, 55764), (477, 43372), (636, 32529), (742, 27882), (954, 21686), (1113, 18588), (1484, 13941), (1549, 13356), (1908, 10843), (2226, 9294), (3098, 6678), (3339, 6196), (4452, 4647)]