21298752

素因数分解:

$2^6\times 3^2\times {\mathrm{103}}^1\times {\mathrm{359}}^1$

素因数の和:480

約数の個数: 84

約数和(自身を含む): 61813440

約数和(自身を除く): 40514688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 103, 144, 192, 206, 288, 309, 359, 412, 576, 618, 718, 824, 927, 1077, 1236, 1436, 1648, 1854, 2154, 2472, 2872, 3231, 3296, 3708, 4308, 4944, 5744, 6462, 6592, 7416, 8616, 9888, 11488, 12924, 14832, 17232, 19776, 22976, 25848, 29664, 34464, 36977, 51696, 59328, 68928, 73954, 103392, 110931, 147908, 206784, 221862, 295816, 332793, 443724, 591632, 665586, 887448, 1183264, 1331172, 1774896, 2366528, 2662344, 3549792, 5324688, 7099584, 10649376, 21298752]

約数ペア:

[(1, 21298752), (2, 10649376), (3, 7099584), (4, 5324688), (6, 3549792), (8, 2662344), (9, 2366528), (12, 1774896), (16, 1331172), (18, 1183264), (24, 887448), (32, 665586), (36, 591632), (48, 443724), (64, 332793), (72, 295816), (96, 221862), (103, 206784), (144, 147908), (192, 110931), (206, 103392), (288, 73954), (309, 68928), (359, 59328), (412, 51696), (576, 36977), (618, 34464), (718, 29664), (824, 25848), (927, 22976), (1077, 19776), (1236, 17232), (1436, 14832), (1648, 12924), (1854, 11488), (2154, 9888), (2472, 8616), (2872, 7416), (3231, 6592), (3296, 6462), (3708, 5744), (4308, 4944)]