21677152

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 30577568

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 47, 56, 58, 71, 94, 112, 116, 142, 188, 203, 224, 232, 284, 329, 376, 406, 464, 497, 568, 658, 752, 812, 928, 994, 1136, 1316, 1363, 1504, 1624, 1988, 2059, 2272, 2632, 2726, 3248, 3337, 3976, 4118, 5264, 5452, 6496, 6674, 7952, 8236, 9541, 10528, 10904, 13348, 14413, 15904, 16472, 19082, 21808, 23359, 26696, 28826, 32944, 38164, 43616, 46718, 53392, 57652, 65888, 76328, 93436, 96773, 106784, 115304, 152656, 186872, 193546, 230608, 305312, 373744, 387092, 461216, 677411, 747488, 774184, 1354822, 1548368, 2709644, 3096736, 5419288, 10838576, 21677152]

約数ペア:

[(1, 21677152), (2, 10838576), (4, 5419288), (7, 3096736), (8, 2709644), (14, 1548368), (16, 1354822), (28, 774184), (29, 747488), (32, 677411), (47, 461216), (56, 387092), (58, 373744), (71, 305312), (94, 230608), (112, 193546), (116, 186872), (142, 152656), (188, 115304), (203, 106784), (224, 96773), (232, 93436), (284, 76328), (329, 65888), (376, 57652), (406, 53392), (464, 46718), (497, 43616), (568, 38164), (658, 32944), (752, 28826), (812, 26696), (928, 23359), (994, 21808), (1136, 19082), (1316, 16472), (1363, 15904), (1504, 14413), (1624, 13348), (1988, 10904), (2059, 10528), (2272, 9541), (2632, 8236), (2726, 7952), (3248, 6674), (3337, 6496), (3976, 5452), (4118, 5264)]