20891304

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:400

約数の個数: 128

約数和(自身を含む): 68140800

約数和(自身を除く): 47249496

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 41, 42, 54, 56, 63, 72, 82, 84, 108, 123, 126, 164, 168, 189, 216, 246, 252, 287, 328, 337, 369, 378, 492, 504, 574, 674, 738, 756, 861, 984, 1011, 1107, 1148, 1348, 1476, 1512, 1722, 2022, 2214, 2296, 2359, 2583, 2696, 2952, 3033, 3444, 4044, 4428, 4718, 5166, 6066, 6888, 7077, 7749, 8088, 8856, 9099, 9436, 10332, 12132, 13817, 14154, 15498, 18198, 18872, 20664, 21231, 24264, 27634, 28308, 30996, 36396, 41451, 42462, 55268, 56616, 61992, 63693, 72792, 82902, 84924, 96719, 110536, 124353, 127386, 165804, 169848, 193438, 248706, 254772, 290157, 331608, 373059, 386876, 497412, 509544, 580314, 746118, 773752, 870471, 994824, 1160628, 1492236, 1740942, 2321256, 2611413, 2984472, 3481884, 5222826, 6963768, 10445652, 20891304]

約数ペア:

[(1, 20891304), (2, 10445652), (3, 6963768), (4, 5222826), (6, 3481884), (7, 2984472), (8, 2611413), (9, 2321256), (12, 1740942), (14, 1492236), (18, 1160628), (21, 994824), (24, 870471), (27, 773752), (28, 746118), (36, 580314), (41, 509544), (42, 497412), (54, 386876), (56, 373059), (63, 331608), (72, 290157), (82, 254772), (84, 248706), (108, 193438), (123, 169848), (126, 165804), (164, 127386), (168, 124353), (189, 110536), (216, 96719), (246, 84924), (252, 82902), (287, 72792), (328, 63693), (337, 61992), (369, 56616), (378, 55268), (492, 42462), (504, 41451), (574, 36396), (674, 30996), (738, 28308), (756, 27634), (861, 24264), (984, 21231), (1011, 20664), (1107, 18872), (1148, 18198), (1348, 15498), (1476, 14154), (1512, 13817), (1722, 12132), (2022, 10332), (2214, 9436), (2296, 9099), (2359, 8856), (2583, 8088), (2696, 7749), (2952, 7077), (3033, 6888), (3444, 6066), (4044, 5166), (4428, 4718)]