19405218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 27043422

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 59, 82, 118, 123, 177, 191, 246, 287, 354, 382, 413, 573, 574, 826, 861, 1146, 1239, 1337, 1722, 2419, 2478, 2674, 4011, 4838, 7257, 7831, 8022, 11269, 14514, 15662, 16933, 22538, 23493, 33807, 33866, 46986, 50799, 54817, 67614, 78883, 101598, 109634, 157766, 164451, 236649, 328902, 462029, 473298, 924058, 1386087, 2772174, 3234203, 6468406, 9702609, 19405218]

約数ペア:

[(1, 19405218), (2, 9702609), (3, 6468406), (6, 3234203), (7, 2772174), (14, 1386087), (21, 924058), (41, 473298), (42, 462029), (59, 328902), (82, 236649), (118, 164451), (123, 157766), (177, 109634), (191, 101598), (246, 78883), (287, 67614), (354, 54817), (382, 50799), (413, 46986), (573, 33866), (574, 33807), (826, 23493), (861, 22538), (1146, 16933), (1239, 15662), (1337, 14514), (1722, 11269), (2419, 8022), (2478, 7831), (2674, 7257), (4011, 4838)]