20854652

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 27916420

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 46, 47, 52, 53, 91, 92, 94, 106, 161, 182, 188, 212, 299, 322, 329, 364, 371, 598, 611, 644, 658, 689, 742, 1081, 1196, 1219, 1222, 1316, 1378, 1484, 2093, 2162, 2438, 2444, 2491, 2756, 4186, 4277, 4324, 4823, 4876, 4982, 7567, 8372, 8533, 8554, 9646, 9964, 14053, 15134, 15847, 17066, 17108, 17437, 19292, 28106, 30268, 31694, 32383, 34132, 34874, 56212, 57293, 63388, 64766, 69748, 98371, 110929, 114586, 129532, 196742, 221858, 226681, 229172, 393484, 401051, 443716, 453362, 744809, 802102, 906724, 1489618, 1604204, 2979236, 5213663, 10427326, 20854652]

約数ペア:

[(1, 20854652), (2, 10427326), (4, 5213663), (7, 2979236), (13, 1604204), (14, 1489618), (23, 906724), (26, 802102), (28, 744809), (46, 453362), (47, 443716), (52, 401051), (53, 393484), (91, 229172), (92, 226681), (94, 221858), (106, 196742), (161, 129532), (182, 114586), (188, 110929), (212, 98371), (299, 69748), (322, 64766), (329, 63388), (364, 57293), (371, 56212), (598, 34874), (611, 34132), (644, 32383), (658, 31694), (689, 30268), (742, 28106), (1081, 19292), (1196, 17437), (1219, 17108), (1222, 17066), (1316, 15847), (1378, 15134), (1484, 14053), (2093, 9964), (2162, 9646), (2438, 8554), (2444, 8533), (2491, 8372), (2756, 7567), (4186, 4982), (4277, 4876), (4324, 4823)]