20742804

素因数分解:

$2^2\times 3^4\times {\mathrm{73}}^1\times {\mathrm{877}}^1$

素因数の和:966

約数の個数: 60

約数和(自身を含む): 55031284

約数和(自身を除く): 34288480

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 73, 81, 108, 146, 162, 219, 292, 324, 438, 657, 876, 877, 1314, 1754, 1971, 2628, 2631, 3508, 3942, 5262, 5913, 7884, 7893, 10524, 11826, 15786, 23652, 23679, 31572, 47358, 64021, 71037, 94716, 128042, 142074, 192063, 256084, 284148, 384126, 576189, 768252, 1152378, 1728567, 2304756, 3457134, 5185701, 6914268, 10371402, 20742804]

約数ペア:

[(1, 20742804), (2, 10371402), (3, 6914268), (4, 5185701), (6, 3457134), (9, 2304756), (12, 1728567), (18, 1152378), (27, 768252), (36, 576189), (54, 384126), (73, 284148), (81, 256084), (108, 192063), (146, 142074), (162, 128042), (219, 94716), (292, 71037), (324, 64021), (438, 47358), (657, 31572), (876, 23679), (877, 23652), (1314, 15786), (1754, 11826), (1971, 10524), (2628, 7893), (2631, 7884), (3508, 5913), (3942, 5262)]