21220704

素因数分解:

$2^5\times 3^5\times {\mathrm{2729}}^1$

素因数の和:2754

約数の個数: 72

約数和(自身を含む): 62604360

約数和(自身を除く): 41383656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 216, 243, 288, 324, 432, 486, 648, 864, 972, 1296, 1944, 2592, 2729, 3888, 5458, 7776, 8187, 10916, 16374, 21832, 24561, 32748, 43664, 49122, 65496, 73683, 87328, 98244, 130992, 147366, 196488, 221049, 261984, 294732, 392976, 442098, 589464, 663147, 785952, 884196, 1178928, 1326294, 1768392, 2357856, 2652588, 3536784, 5305176, 7073568, 10610352, 21220704]

約数ペア:

[(1, 21220704), (2, 10610352), (3, 7073568), (4, 5305176), (6, 3536784), (8, 2652588), (9, 2357856), (12, 1768392), (16, 1326294), (18, 1178928), (24, 884196), (27, 785952), (32, 663147), (36, 589464), (48, 442098), (54, 392976), (72, 294732), (81, 261984), (96, 221049), (108, 196488), (144, 147366), (162, 130992), (216, 98244), (243, 87328), (288, 73683), (324, 65496), (432, 49122), (486, 43664), (648, 32748), (864, 24561), (972, 21832), (1296, 16374), (1944, 10916), (2592, 8187), (2729, 7776), (3888, 5458)]