19604145

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 37635840

約数和(自身を除く): 18031695

約数列:

[1, 3, 5, 11, 15, 17, 29, 33, 51, 55, 85, 87, 145, 165, 187, 241, 255, 319, 435, 493, 561, 723, 935, 957, 1205, 1479, 1595, 2465, 2651, 2805, 3615, 4097, 4785, 5423, 6989, 7395, 7953, 12291, 13255, 16269, 20485, 20967, 27115, 34945, 39765, 45067, 61455, 76879, 81345, 104835, 118813, 135201, 225335, 230637, 356439, 384395, 594065, 676005, 1153185, 1306943, 1782195, 3920829, 6534715, 19604145]

約数ペア:

[(1, 19604145), (3, 6534715), (5, 3920829), (11, 1782195), (15, 1306943), (17, 1153185), (29, 676005), (33, 594065), (51, 384395), (55, 356439), (85, 230637), (87, 225335), (145, 135201), (165, 118813), (187, 104835), (241, 81345), (255, 76879), (319, 61455), (435, 45067), (493, 39765), (561, 34945), (723, 27115), (935, 20967), (957, 20485), (1205, 16269), (1479, 13255), (1595, 12291), (2465, 7953), (2651, 7395), (2805, 6989), (3615, 5423), (4097, 4785)]