21155712

素因数分解:

$2^7\times 3^1\times {\mathrm{37}}^1\times {\mathrm{1489}}^1$

素因数の和:1543

約数の個数: 64

約数和(自身を含む): 57752400

約数和(自身を除く): 36596688

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 37, 48, 64, 74, 96, 111, 128, 148, 192, 222, 296, 384, 444, 592, 888, 1184, 1489, 1776, 2368, 2978, 3552, 4467, 4736, 5956, 7104, 8934, 11912, 14208, 17868, 23824, 35736, 47648, 55093, 71472, 95296, 110186, 142944, 165279, 190592, 220372, 285888, 330558, 440744, 571776, 661116, 881488, 1322232, 1762976, 2644464, 3525952, 5288928, 7051904, 10577856, 21155712]

約数ペア:

[(1, 21155712), (2, 10577856), (3, 7051904), (4, 5288928), (6, 3525952), (8, 2644464), (12, 1762976), (16, 1322232), (24, 881488), (32, 661116), (37, 571776), (48, 440744), (64, 330558), (74, 285888), (96, 220372), (111, 190592), (128, 165279), (148, 142944), (192, 110186), (222, 95296), (296, 71472), (384, 55093), (444, 47648), (592, 35736), (888, 23824), (1184, 17868), (1489, 14208), (1776, 11912), (2368, 8934), (2978, 7104), (3552, 5956), (4467, 4736)]