21266048

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{337}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 46542600

約数和(自身を除く): 25276552

約数列:

[1, 2, 4, 8, 16, 17, 29, 32, 34, 58, 64, 68, 116, 128, 136, 232, 272, 337, 464, 493, 544, 674, 928, 986, 1088, 1348, 1856, 1972, 2176, 2696, 3712, 3944, 5392, 5729, 7888, 9773, 10784, 11458, 15776, 19546, 21568, 22916, 31552, 39092, 43136, 45832, 63104, 78184, 91664, 156368, 166141, 183328, 312736, 332282, 366656, 625472, 664564, 733312, 1250944, 1329128, 2658256, 5316512, 10633024, 21266048]

約数ペア:

[(1, 21266048), (2, 10633024), (4, 5316512), (8, 2658256), (16, 1329128), (17, 1250944), (29, 733312), (32, 664564), (34, 625472), (58, 366656), (64, 332282), (68, 312736), (116, 183328), (128, 166141), (136, 156368), (232, 91664), (272, 78184), (337, 63104), (464, 45832), (493, 43136), (544, 39092), (674, 31552), (928, 22916), (986, 21568), (1088, 19546), (1348, 15776), (1856, 11458), (1972, 10784), (2176, 9773), (2696, 7888), (3712, 5729), (3944, 5392)]