21283488

素因数分解:

$2^5\times 3^2\times {\mathrm{67}}^1\times {\mathrm{1103}}^1$

素因数の和:1186

約数の個数: 72

約数和(自身を含む): 61483968

約数和(自身を除く): 40200480

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 67, 72, 96, 134, 144, 201, 268, 288, 402, 536, 603, 804, 1072, 1103, 1206, 1608, 2144, 2206, 2412, 3216, 3309, 4412, 4824, 6432, 6618, 8824, 9648, 9927, 13236, 17648, 19296, 19854, 26472, 35296, 39708, 52944, 73901, 79416, 105888, 147802, 158832, 221703, 295604, 317664, 443406, 591208, 665109, 886812, 1182416, 1330218, 1773624, 2364832, 2660436, 3547248, 5320872, 7094496, 10641744, 21283488]

約数ペア:

[(1, 21283488), (2, 10641744), (3, 7094496), (4, 5320872), (6, 3547248), (8, 2660436), (9, 2364832), (12, 1773624), (16, 1330218), (18, 1182416), (24, 886812), (32, 665109), (36, 591208), (48, 443406), (67, 317664), (72, 295604), (96, 221703), (134, 158832), (144, 147802), (201, 105888), (268, 79416), (288, 73901), (402, 52944), (536, 39708), (603, 35296), (804, 26472), (1072, 19854), (1103, 19296), (1206, 17648), (1608, 13236), (2144, 9927), (2206, 9648), (2412, 8824), (3216, 6618), (3309, 6432), (4412, 4824)]