21294592

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:247

約数の個数: 80

約数和(自身を含む): 49104000

約数和(自身を除く): 27809408

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 128, 152, 176, 199, 209, 256, 304, 352, 398, 418, 512, 608, 704, 796, 836, 1216, 1408, 1592, 1672, 2189, 2432, 2816, 3184, 3344, 3781, 4378, 4864, 5632, 6368, 6688, 7562, 8756, 9728, 12736, 13376, 15124, 17512, 25472, 26752, 30248, 35024, 41591, 50944, 53504, 60496, 70048, 83182, 101888, 107008, 120992, 140096, 166364, 241984, 280192, 332728, 483968, 560384, 665456, 967936, 1120768, 1330912, 1935872, 2661824, 5323648, 10647296, 21294592]

約数ペア:

[(1, 21294592), (2, 10647296), (4, 5323648), (8, 2661824), (11, 1935872), (16, 1330912), (19, 1120768), (22, 967936), (32, 665456), (38, 560384), (44, 483968), (64, 332728), (76, 280192), (88, 241984), (128, 166364), (152, 140096), (176, 120992), (199, 107008), (209, 101888), (256, 83182), (304, 70048), (352, 60496), (398, 53504), (418, 50944), (512, 41591), (608, 35024), (704, 30248), (796, 26752), (836, 25472), (1216, 17512), (1408, 15124), (1592, 13376), (1672, 12736), (2189, 9728), (2432, 8756), (2816, 7562), (3184, 6688), (3344, 6368), (3781, 5632), (4378, 4864)]