20848716

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:300

約数の個数: 108

約数和(自身を含む): 62741952

約数和(自身を除く): 41893236

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 53, 63, 84, 98, 106, 126, 147, 159, 196, 212, 223, 252, 294, 318, 371, 441, 446, 477, 588, 636, 669, 742, 882, 892, 954, 1113, 1338, 1484, 1561, 1764, 1908, 2007, 2226, 2597, 2676, 3122, 3339, 4014, 4452, 4683, 5194, 6244, 6678, 7791, 8028, 9366, 10388, 10927, 11819, 13356, 14049, 15582, 18732, 21854, 23373, 23638, 28098, 31164, 32781, 35457, 43708, 46746, 47276, 56196, 65562, 70914, 82733, 93492, 98343, 106371, 131124, 141828, 165466, 196686, 212742, 248199, 330932, 393372, 425484, 496398, 579131, 744597, 992796, 1158262, 1489194, 1737393, 2316524, 2978388, 3474786, 5212179, 6949572, 10424358, 20848716]

約数ペア:

[(1, 20848716), (2, 10424358), (3, 6949572), (4, 5212179), (6, 3474786), (7, 2978388), (9, 2316524), (12, 1737393), (14, 1489194), (18, 1158262), (21, 992796), (28, 744597), (36, 579131), (42, 496398), (49, 425484), (53, 393372), (63, 330932), (84, 248199), (98, 212742), (106, 196686), (126, 165466), (147, 141828), (159, 131124), (196, 106371), (212, 98343), (223, 93492), (252, 82733), (294, 70914), (318, 65562), (371, 56196), (441, 47276), (446, 46746), (477, 43708), (588, 35457), (636, 32781), (669, 31164), (742, 28098), (882, 23638), (892, 23373), (954, 21854), (1113, 18732), (1338, 15582), (1484, 14049), (1561, 13356), (1764, 11819), (1908, 10927), (2007, 10388), (2226, 9366), (2597, 8028), (2676, 7791), (3122, 6678), (3339, 6244), (4014, 5194), (4452, 4683)]