21499488

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{3929}}^1$

素因数の和:3964

約数の個数: 72

約数和(自身を含む): 64373400

約数和(自身を除く): 42873912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 38, 48, 57, 72, 76, 96, 114, 144, 152, 171, 228, 288, 304, 342, 456, 608, 684, 912, 1368, 1824, 2736, 3929, 5472, 7858, 11787, 15716, 23574, 31432, 35361, 47148, 62864, 70722, 74651, 94296, 125728, 141444, 149302, 188592, 223953, 282888, 298604, 377184, 447906, 565776, 597208, 671859, 895812, 1131552, 1194416, 1343718, 1791624, 2388832, 2687436, 3583248, 5374872, 7166496, 10749744, 21499488]

約数ペア:

[(1, 21499488), (2, 10749744), (3, 7166496), (4, 5374872), (6, 3583248), (8, 2687436), (9, 2388832), (12, 1791624), (16, 1343718), (18, 1194416), (19, 1131552), (24, 895812), (32, 671859), (36, 597208), (38, 565776), (48, 447906), (57, 377184), (72, 298604), (76, 282888), (96, 223953), (114, 188592), (144, 149302), (152, 141444), (171, 125728), (228, 94296), (288, 74651), (304, 70722), (342, 62864), (456, 47148), (608, 35361), (684, 31432), (912, 23574), (1368, 15716), (1824, 11787), (2736, 7858), (3929, 5472)]