19280478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 47715840

約数和(自身を除く): 28435362

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 37, 38, 42, 57, 74, 111, 114, 133, 222, 259, 266, 399, 518, 653, 703, 777, 798, 1306, 1406, 1554, 1959, 2109, 3918, 4218, 4571, 4921, 9142, 9842, 12407, 13713, 14763, 24161, 24814, 27426, 29526, 37221, 48322, 72483, 74442, 86849, 144966, 169127, 173698, 260547, 338254, 459059, 507381, 521094, 918118, 1014762, 1377177, 2754354, 3213413, 6426826, 9640239, 19280478]

約数ペア:

[(1, 19280478), (2, 9640239), (3, 6426826), (6, 3213413), (7, 2754354), (14, 1377177), (19, 1014762), (21, 918118), (37, 521094), (38, 507381), (42, 459059), (57, 338254), (74, 260547), (111, 173698), (114, 169127), (133, 144966), (222, 86849), (259, 74442), (266, 72483), (399, 48322), (518, 37221), (653, 29526), (703, 27426), (777, 24814), (798, 24161), (1306, 14763), (1406, 13713), (1554, 12407), (1959, 9842), (2109, 9142), (3918, 4921), (4218, 4571)]