20696445

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{181}}^1$

素因数の和:224

約数の個数: 96

約数和(自身を含む): 46475520

約数和(自身を除く): 25779075

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 99, 105, 121, 135, 165, 181, 189, 231, 297, 315, 363, 385, 495, 543, 605, 693, 847, 905, 945, 1089, 1155, 1267, 1485, 1629, 1815, 1991, 2079, 2541, 2715, 3267, 3465, 3801, 4235, 4887, 5445, 5973, 6335, 7623, 8145, 9955, 10395, 11403, 12705, 13937, 16335, 17919, 19005, 21901, 22869, 24435, 29865, 34209, 38115, 41811, 53757, 57015, 65703, 69685, 89595, 109505, 114345, 125433, 153307, 171045, 197109, 209055, 268785, 328515, 376299, 459921, 591327, 627165, 766535, 985545, 1379763, 1881495, 2299605, 2956635, 4139289, 6898815, 20696445]

約数ペア:

[(1, 20696445), (3, 6898815), (5, 4139289), (7, 2956635), (9, 2299605), (11, 1881495), (15, 1379763), (21, 985545), (27, 766535), (33, 627165), (35, 591327), (45, 459921), (55, 376299), (63, 328515), (77, 268785), (99, 209055), (105, 197109), (121, 171045), (135, 153307), (165, 125433), (181, 114345), (189, 109505), (231, 89595), (297, 69685), (315, 65703), (363, 57015), (385, 53757), (495, 41811), (543, 38115), (605, 34209), (693, 29865), (847, 24435), (905, 22869), (945, 21901), (1089, 19005), (1155, 17919), (1267, 16335), (1485, 13937), (1629, 12705), (1815, 11403), (1991, 10395), (2079, 9955), (2541, 8145), (2715, 7623), (3267, 6335), (3465, 5973), (3801, 5445), (4235, 4887)]