21508096

素因数分解:

$2^{12}\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 52

約数和(自身を含む): 44231400

約数和(自身を除く): 22723304

約数列:

[1, 2, 4, 8, 16, 32, 59, 64, 89, 118, 128, 178, 236, 256, 356, 472, 512, 712, 944, 1024, 1424, 1888, 2048, 2848, 3776, 4096, 5251, 5696, 7552, 10502, 11392, 15104, 21004, 22784, 30208, 42008, 45568, 60416, 84016, 91136, 120832, 168032, 182272, 241664, 336064, 364544, 672128, 1344256, 2688512, 5377024, 10754048, 21508096]

約数ペア:

[(1, 21508096), (2, 10754048), (4, 5377024), (8, 2688512), (16, 1344256), (32, 672128), (59, 364544), (64, 336064), (89, 241664), (118, 182272), (128, 168032), (178, 120832), (236, 91136), (256, 84016), (356, 60416), (472, 45568), (512, 42008), (712, 30208), (944, 22784), (1024, 21004), (1424, 15104), (1888, 11392), (2048, 10502), (2848, 7552), (3776, 5696), (4096, 5251)]