19881752

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:117

約数の個数: 96

約数和(自身を含む): 45964800

約数和(自身を除く): 26083048

約数列:

[1, 2, 4, 8, 11, 19, 22, 23, 38, 44, 46, 47, 76, 88, 92, 94, 121, 152, 184, 188, 209, 242, 253, 376, 418, 437, 484, 506, 517, 836, 874, 893, 968, 1012, 1034, 1081, 1672, 1748, 1786, 2024, 2068, 2162, 2299, 2783, 3496, 3572, 4136, 4324, 4598, 4807, 5566, 5687, 7144, 8648, 9196, 9614, 9823, 11132, 11374, 11891, 18392, 19228, 19646, 20539, 22264, 22748, 23782, 38456, 39292, 41078, 45496, 47564, 52877, 78584, 82156, 95128, 105754, 108053, 130801, 164312, 211508, 216106, 225929, 261602, 423016, 432212, 451858, 523204, 864424, 903716, 1046408, 1807432, 2485219, 4970438, 9940876, 19881752]

約数ペア:

[(1, 19881752), (2, 9940876), (4, 4970438), (8, 2485219), (11, 1807432), (19, 1046408), (22, 903716), (23, 864424), (38, 523204), (44, 451858), (46, 432212), (47, 423016), (76, 261602), (88, 225929), (92, 216106), (94, 211508), (121, 164312), (152, 130801), (184, 108053), (188, 105754), (209, 95128), (242, 82156), (253, 78584), (376, 52877), (418, 47564), (437, 45496), (484, 41078), (506, 39292), (517, 38456), (836, 23782), (874, 22748), (893, 22264), (968, 20539), (1012, 19646), (1034, 19228), (1081, 18392), (1672, 11891), (1748, 11374), (1786, 11132), (2024, 9823), (2068, 9614), (2162, 9196), (2299, 8648), (2783, 7144), (3496, 5687), (3572, 5566), (4136, 4807), (4324, 4598)]