21731328

素因数分解:

$2^{11}\times 3^4\times {\mathrm{131}}^1$

素因数の和:165

約数の個数: 120

約数和(自身を含む): 65405340

約数和(自身を除く): 43674012

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 131, 144, 162, 192, 216, 256, 262, 288, 324, 384, 393, 432, 512, 524, 576, 648, 768, 786, 864, 1024, 1048, 1152, 1179, 1296, 1536, 1572, 1728, 2048, 2096, 2304, 2358, 2592, 3072, 3144, 3456, 3537, 4192, 4608, 4716, 5184, 6144, 6288, 6912, 7074, 8384, 9216, 9432, 10368, 10611, 12576, 13824, 14148, 16768, 18432, 18864, 20736, 21222, 25152, 27648, 28296, 33536, 37728, 41472, 42444, 50304, 55296, 56592, 67072, 75456, 82944, 84888, 100608, 113184, 134144, 150912, 165888, 169776, 201216, 226368, 268288, 301824, 339552, 402432, 452736, 603648, 679104, 804864, 905472, 1207296, 1358208, 1810944, 2414592, 2716416, 3621888, 5432832, 7243776, 10865664, 21731328]

約数ペア:

[(1, 21731328), (2, 10865664), (3, 7243776), (4, 5432832), (6, 3621888), (8, 2716416), (9, 2414592), (12, 1810944), (16, 1358208), (18, 1207296), (24, 905472), (27, 804864), (32, 679104), (36, 603648), (48, 452736), (54, 402432), (64, 339552), (72, 301824), (81, 268288), (96, 226368), (108, 201216), (128, 169776), (131, 165888), (144, 150912), (162, 134144), (192, 113184), (216, 100608), (256, 84888), (262, 82944), (288, 75456), (324, 67072), (384, 56592), (393, 55296), (432, 50304), (512, 42444), (524, 41472), (576, 37728), (648, 33536), (768, 28296), (786, 27648), (864, 25152), (1024, 21222), (1048, 20736), (1152, 18864), (1179, 18432), (1296, 16768), (1536, 14148), (1572, 13824), (1728, 12576), (2048, 10611), (2096, 10368), (2304, 9432), (2358, 9216), (2592, 8384), (3072, 7074), (3144, 6912), (3456, 6288), (3537, 6144), (4192, 5184), (4608, 4716)]