21684928

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1049}}^1$

素因数の和:1097

約数の個数: 56

約数和(自身を含む): 48006000

約数和(自身を除く): 26321072

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1049, 1088, 1216, 1292, 2098, 2584, 4196, 5168, 8392, 10336, 16784, 17833, 19931, 20672, 33568, 35666, 39862, 67136, 71332, 79724, 142664, 159448, 285328, 318896, 338827, 570656, 637792, 677654, 1141312, 1275584, 1355308, 2710616, 5421232, 10842464, 21684928]

約数ペア:

[(1, 21684928), (2, 10842464), (4, 5421232), (8, 2710616), (16, 1355308), (17, 1275584), (19, 1141312), (32, 677654), (34, 637792), (38, 570656), (64, 338827), (68, 318896), (76, 285328), (136, 159448), (152, 142664), (272, 79724), (304, 71332), (323, 67136), (544, 39862), (608, 35666), (646, 33568), (1049, 20672), (1088, 19931), (1216, 17833), (1292, 16784), (2098, 10336), (2584, 8392), (4196, 5168)]