21014496

素因数分解:

$2^5\times 3^2\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:704

約数の個数: 72

約数和(自身を含む): 60324264

約数和(自身を除く): 39309768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 131, 144, 262, 288, 393, 524, 557, 786, 1048, 1114, 1179, 1572, 1671, 2096, 2228, 2358, 3144, 3342, 4192, 4456, 4716, 5013, 6288, 6684, 8912, 9432, 10026, 12576, 13368, 17824, 18864, 20052, 26736, 37728, 40104, 53472, 72967, 80208, 145934, 160416, 218901, 291868, 437802, 583736, 656703, 875604, 1167472, 1313406, 1751208, 2334944, 2626812, 3502416, 5253624, 7004832, 10507248, 21014496]

約数ペア:

[(1, 21014496), (2, 10507248), (3, 7004832), (4, 5253624), (6, 3502416), (8, 2626812), (9, 2334944), (12, 1751208), (16, 1313406), (18, 1167472), (24, 875604), (32, 656703), (36, 583736), (48, 437802), (72, 291868), (96, 218901), (131, 160416), (144, 145934), (262, 80208), (288, 72967), (393, 53472), (524, 40104), (557, 37728), (786, 26736), (1048, 20052), (1114, 18864), (1179, 17824), (1572, 13368), (1671, 12576), (2096, 10026), (2228, 9432), (2358, 8912), (3144, 6684), (3342, 6288), (4192, 5013), (4456, 4716)]