20721504

素因数分解:

$2^5\times 3^1\times {\mathrm{17}}^1\times {\mathrm{12697}}^1$

素因数の和:12727

約数の個数: 48

約数和(自身を含む): 57598128

約数和(自身を除く): 36876624

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 68, 96, 102, 136, 204, 272, 408, 544, 816, 1632, 12697, 25394, 38091, 50788, 76182, 101576, 152364, 203152, 215849, 304728, 406304, 431698, 609456, 647547, 863396, 1218912, 1295094, 1726792, 2590188, 3453584, 5180376, 6907168, 10360752, 20721504]

約数ペア:

[(1, 20721504), (2, 10360752), (3, 6907168), (4, 5180376), (6, 3453584), (8, 2590188), (12, 1726792), (16, 1295094), (17, 1218912), (24, 863396), (32, 647547), (34, 609456), (48, 431698), (51, 406304), (68, 304728), (96, 215849), (102, 203152), (136, 152364), (204, 101576), (272, 76182), (408, 50788), (544, 38091), (816, 25394), (1632, 12697)]