21128536

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:137

約数の個数: 96

約数和(自身を含む): 49603680

約数和(自身を除く): 28475144

約数列:

[1, 2, 4, 8, 11, 13, 22, 23, 26, 44, 46, 52, 73, 88, 92, 104, 121, 143, 146, 184, 242, 253, 286, 292, 299, 484, 506, 572, 584, 598, 803, 949, 968, 1012, 1144, 1196, 1573, 1606, 1679, 1898, 2024, 2392, 2783, 3146, 3212, 3289, 3358, 3796, 5566, 6292, 6424, 6578, 6716, 7592, 8833, 10439, 11132, 12584, 13156, 13432, 17666, 18469, 20878, 21827, 22264, 26312, 35332, 36179, 36938, 41756, 43654, 70664, 72358, 73876, 83512, 87308, 114829, 144716, 147752, 174616, 203159, 229658, 240097, 289432, 406318, 459316, 480194, 812636, 918632, 960388, 1625272, 1920776, 2641067, 5282134, 10564268, 21128536]

約数ペア:

[(1, 21128536), (2, 10564268), (4, 5282134), (8, 2641067), (11, 1920776), (13, 1625272), (22, 960388), (23, 918632), (26, 812636), (44, 480194), (46, 459316), (52, 406318), (73, 289432), (88, 240097), (92, 229658), (104, 203159), (121, 174616), (143, 147752), (146, 144716), (184, 114829), (242, 87308), (253, 83512), (286, 73876), (292, 72358), (299, 70664), (484, 43654), (506, 41756), (572, 36938), (584, 36179), (598, 35332), (803, 26312), (949, 22264), (968, 21827), (1012, 20878), (1144, 18469), (1196, 17666), (1573, 13432), (1606, 13156), (1679, 12584), (1898, 11132), (2024, 10439), (2392, 8833), (2783, 7592), (3146, 6716), (3212, 6578), (3289, 6424), (3358, 6292), (3796, 5566)]