21788416

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{6547}}^1$

素因数の和:6576

約数の個数: 36

約数和(自身を含む): 46844392

約数和(自身を除く): 25055976

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 6547, 13094, 26188, 52376, 85111, 104752, 170222, 209504, 340444, 419008, 680888, 838016, 1361776, 1676032, 2723552, 5447104, 10894208, 21788416]

約数ペア:

[(1, 21788416), (2, 10894208), (4, 5447104), (8, 2723552), (13, 1676032), (16, 1361776), (26, 838016), (32, 680888), (52, 419008), (64, 340444), (104, 209504), (128, 170222), (208, 104752), (256, 85111), (416, 52376), (832, 26188), (1664, 13094), (3328, 6547)]