21784464

素因数分解:

$2^4\times 3^5\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:467

約数の個数: 120

約数和(自身を含む): 68245632

約数和(自身を除く): 46461168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 81, 104, 108, 117, 144, 156, 162, 208, 216, 234, 243, 312, 324, 351, 431, 432, 468, 486, 624, 648, 702, 862, 936, 972, 1053, 1293, 1296, 1404, 1724, 1872, 1944, 2106, 2586, 2808, 3159, 3448, 3879, 3888, 4212, 5172, 5603, 5616, 6318, 6896, 7758, 8424, 10344, 11206, 11637, 12636, 15516, 16809, 16848, 20688, 22412, 23274, 25272, 31032, 33618, 34911, 44824, 46548, 50427, 50544, 62064, 67236, 69822, 89648, 93096, 100854, 104733, 134472, 139644, 151281, 186192, 201708, 209466, 268944, 279288, 302562, 403416, 418932, 453843, 558576, 605124, 806832, 837864, 907686, 1210248, 1361529, 1675728, 1815372, 2420496, 2723058, 3630744, 5446116, 7261488, 10892232, 21784464]

約数ペア:

[(1, 21784464), (2, 10892232), (3, 7261488), (4, 5446116), (6, 3630744), (8, 2723058), (9, 2420496), (12, 1815372), (13, 1675728), (16, 1361529), (18, 1210248), (24, 907686), (26, 837864), (27, 806832), (36, 605124), (39, 558576), (48, 453843), (52, 418932), (54, 403416), (72, 302562), (78, 279288), (81, 268944), (104, 209466), (108, 201708), (117, 186192), (144, 151281), (156, 139644), (162, 134472), (208, 104733), (216, 100854), (234, 93096), (243, 89648), (312, 69822), (324, 67236), (351, 62064), (431, 50544), (432, 50427), (468, 46548), (486, 44824), (624, 34911), (648, 33618), (702, 31032), (862, 25272), (936, 23274), (972, 22412), (1053, 20688), (1293, 16848), (1296, 16809), (1404, 15516), (1724, 12636), (1872, 11637), (1944, 11206), (2106, 10344), (2586, 8424), (2808, 7758), (3159, 6896), (3448, 6318), (3879, 5616), (3888, 5603), (4212, 5172)]