21333984

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{599}}^1$

素因数の和:672

約数の個数: 96

約数和(自身を含む): 65318400

約数和(自身を除く): 43984416

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 53, 56, 84, 96, 106, 112, 159, 168, 212, 224, 318, 336, 371, 424, 599, 636, 672, 742, 848, 1113, 1198, 1272, 1484, 1696, 1797, 2226, 2396, 2544, 2968, 3594, 4193, 4452, 4792, 5088, 5936, 7188, 8386, 8904, 9584, 11872, 12579, 14376, 16772, 17808, 19168, 25158, 28752, 31747, 33544, 35616, 50316, 57504, 63494, 67088, 95241, 100632, 126988, 134176, 190482, 201264, 222229, 253976, 380964, 402528, 444458, 507952, 666687, 761928, 888916, 1015904, 1333374, 1523856, 1777832, 2666748, 3047712, 3555664, 5333496, 7111328, 10666992, 21333984]

約数ペア:

[(1, 21333984), (2, 10666992), (3, 7111328), (4, 5333496), (6, 3555664), (7, 3047712), (8, 2666748), (12, 1777832), (14, 1523856), (16, 1333374), (21, 1015904), (24, 888916), (28, 761928), (32, 666687), (42, 507952), (48, 444458), (53, 402528), (56, 380964), (84, 253976), (96, 222229), (106, 201264), (112, 190482), (159, 134176), (168, 126988), (212, 100632), (224, 95241), (318, 67088), (336, 63494), (371, 57504), (424, 50316), (599, 35616), (636, 33544), (672, 31747), (742, 28752), (848, 25158), (1113, 19168), (1198, 17808), (1272, 16772), (1484, 14376), (1696, 12579), (1797, 11872), (2226, 9584), (2396, 8904), (2544, 8386), (2968, 7188), (3594, 5936), (4193, 5088), (4452, 4792)]