20281716

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 65065728

約数和(自身を除く): 44784012

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 41, 42, 52, 63, 78, 82, 84, 91, 117, 123, 126, 151, 156, 164, 182, 234, 246, 252, 273, 287, 302, 364, 369, 453, 468, 492, 533, 546, 574, 604, 738, 819, 861, 906, 1057, 1066, 1092, 1148, 1359, 1476, 1599, 1638, 1722, 1812, 1963, 2114, 2132, 2583, 2718, 3171, 3198, 3276, 3444, 3731, 3926, 4228, 4797, 5166, 5436, 5889, 6191, 6342, 6396, 7462, 7852, 9513, 9594, 10332, 11193, 11778, 12382, 12684, 13741, 14924, 17667, 18573, 19026, 19188, 22386, 23556, 24764, 27482, 33579, 35334, 37146, 38052, 41223, 43337, 44772, 54964, 55719, 67158, 70668, 74292, 80483, 82446, 86674, 111438, 123669, 130011, 134316, 160966, 164892, 173348, 222876, 241449, 247338, 260022, 321932, 390033, 482898, 494676, 520044, 563381, 724347, 780066, 965796, 1126762, 1448694, 1560132, 1690143, 2253524, 2897388, 3380286, 5070429, 6760572, 10140858, 20281716]

約数ペア:

[(1, 20281716), (2, 10140858), (3, 6760572), (4, 5070429), (6, 3380286), (7, 2897388), (9, 2253524), (12, 1690143), (13, 1560132), (14, 1448694), (18, 1126762), (21, 965796), (26, 780066), (28, 724347), (36, 563381), (39, 520044), (41, 494676), (42, 482898), (52, 390033), (63, 321932), (78, 260022), (82, 247338), (84, 241449), (91, 222876), (117, 173348), (123, 164892), (126, 160966), (151, 134316), (156, 130011), (164, 123669), (182, 111438), (234, 86674), (246, 82446), (252, 80483), (273, 74292), (287, 70668), (302, 67158), (364, 55719), (369, 54964), (453, 44772), (468, 43337), (492, 41223), (533, 38052), (546, 37146), (574, 35334), (604, 33579), (738, 27482), (819, 24764), (861, 23556), (906, 22386), (1057, 19188), (1066, 19026), (1092, 18573), (1148, 17667), (1359, 14924), (1476, 13741), (1599, 12684), (1638, 12382), (1722, 11778), (1812, 11193), (1963, 10332), (2114, 9594), (2132, 9513), (2583, 7852), (2718, 7462), (3171, 6396), (3198, 6342), (3276, 6191), (3444, 5889), (3731, 5436), (3926, 5166), (4228, 4797)]