21854656

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:461

約数の個数: 56

約数和(自身を含む): 46908720

約数和(自身を除く): 25054064

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 53, 64, 68, 106, 136, 212, 272, 379, 424, 544, 758, 848, 901, 1088, 1516, 1696, 1802, 3032, 3392, 3604, 6064, 6443, 7208, 12128, 12886, 14416, 20087, 24256, 25772, 28832, 40174, 51544, 57664, 80348, 103088, 160696, 206176, 321392, 341479, 412352, 642784, 682958, 1285568, 1365916, 2731832, 5463664, 10927328, 21854656]

約数ペア:

[(1, 21854656), (2, 10927328), (4, 5463664), (8, 2731832), (16, 1365916), (17, 1285568), (32, 682958), (34, 642784), (53, 412352), (64, 341479), (68, 321392), (106, 206176), (136, 160696), (212, 103088), (272, 80348), (379, 57664), (424, 51544), (544, 40174), (758, 28832), (848, 25772), (901, 24256), (1088, 20087), (1516, 14416), (1696, 12886), (1802, 12128), (3032, 7208), (3392, 6443), (3604, 6064)]