21489888

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{283}}^1$

素因数の和:416

約数の個数: 96

約数和(自身を含む): 65270016

約数和(自身を除く): 43780128

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 113, 168, 224, 226, 283, 336, 339, 452, 566, 672, 678, 791, 849, 904, 1132, 1356, 1582, 1698, 1808, 1981, 2264, 2373, 2712, 3164, 3396, 3616, 3962, 4528, 4746, 5424, 5943, 6328, 6792, 7924, 9056, 9492, 10848, 11886, 12656, 13584, 15848, 18984, 23772, 25312, 27168, 31696, 31979, 37968, 47544, 63392, 63958, 75936, 95088, 95937, 127916, 190176, 191874, 223853, 255832, 383748, 447706, 511664, 671559, 767496, 895412, 1023328, 1343118, 1534992, 1790824, 2686236, 3069984, 3581648, 5372472, 7163296, 10744944, 21489888]

約数ペア:

[(1, 21489888), (2, 10744944), (3, 7163296), (4, 5372472), (6, 3581648), (7, 3069984), (8, 2686236), (12, 1790824), (14, 1534992), (16, 1343118), (21, 1023328), (24, 895412), (28, 767496), (32, 671559), (42, 511664), (48, 447706), (56, 383748), (84, 255832), (96, 223853), (112, 191874), (113, 190176), (168, 127916), (224, 95937), (226, 95088), (283, 75936), (336, 63958), (339, 63392), (452, 47544), (566, 37968), (672, 31979), (678, 31696), (791, 27168), (849, 25312), (904, 23772), (1132, 18984), (1356, 15848), (1582, 13584), (1698, 12656), (1808, 11886), (1981, 10848), (2264, 9492), (2373, 9056), (2712, 7924), (3164, 6792), (3396, 6328), (3616, 5943), (3962, 5424), (4528, 4746)]