21865728

素因数分解:

$2^8\times 3^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 59161536

約数和(自身を除く): 37295808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 71, 96, 128, 142, 192, 213, 256, 284, 384, 401, 426, 568, 768, 802, 852, 1136, 1203, 1604, 1704, 2272, 2406, 3208, 3408, 4544, 4812, 6416, 6816, 9088, 9624, 12832, 13632, 18176, 19248, 25664, 27264, 28471, 38496, 51328, 54528, 56942, 76992, 85413, 102656, 113884, 153984, 170826, 227768, 307968, 341652, 455536, 683304, 911072, 1366608, 1822144, 2733216, 3644288, 5466432, 7288576, 10932864, 21865728]

約数ペア:

[(1, 21865728), (2, 10932864), (3, 7288576), (4, 5466432), (6, 3644288), (8, 2733216), (12, 1822144), (16, 1366608), (24, 911072), (32, 683304), (48, 455536), (64, 341652), (71, 307968), (96, 227768), (128, 170826), (142, 153984), (192, 113884), (213, 102656), (256, 85413), (284, 76992), (384, 56942), (401, 54528), (426, 51328), (568, 38496), (768, 28471), (802, 27264), (852, 25664), (1136, 19248), (1203, 18176), (1604, 13632), (1704, 12832), (2272, 9624), (2406, 9088), (3208, 6816), (3408, 6416), (4544, 4812)]