21291648

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{89}}^2$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 65369760

約数和(自身を除く): 44078112

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 89, 96, 112, 128, 168, 178, 192, 224, 267, 336, 356, 384, 448, 534, 623, 672, 712, 896, 1068, 1246, 1344, 1424, 1869, 2136, 2492, 2688, 2848, 3738, 4272, 4984, 5696, 7476, 7921, 8544, 9968, 11392, 14952, 15842, 17088, 19936, 23763, 29904, 31684, 34176, 39872, 47526, 55447, 59808, 63368, 79744, 95052, 110894, 119616, 126736, 166341, 190104, 221788, 239232, 253472, 332682, 380208, 443576, 506944, 665364, 760416, 887152, 1013888, 1330728, 1520832, 1774304, 2661456, 3041664, 3548608, 5322912, 7097216, 10645824, 21291648]

約数ペア:

[(1, 21291648), (2, 10645824), (3, 7097216), (4, 5322912), (6, 3548608), (7, 3041664), (8, 2661456), (12, 1774304), (14, 1520832), (16, 1330728), (21, 1013888), (24, 887152), (28, 760416), (32, 665364), (42, 506944), (48, 443576), (56, 380208), (64, 332682), (84, 253472), (89, 239232), (96, 221788), (112, 190104), (128, 166341), (168, 126736), (178, 119616), (192, 110894), (224, 95052), (267, 79744), (336, 63368), (356, 59808), (384, 55447), (448, 47526), (534, 39872), (623, 34176), (672, 31684), (712, 29904), (896, 23763), (1068, 19936), (1246, 17088), (1344, 15842), (1424, 14952), (1869, 11392), (2136, 9968), (2492, 8544), (2688, 7921), (2848, 7476), (3738, 5696), (4272, 4984)]