154964019

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 255761280

約数和(自身を除く): 100797261

約数列:

[1, 3, 7, 19, 21, 49, 57, 113, 133, 147, 339, 399, 491, 791, 931, 1473, 2147, 2373, 2793, 3437, 5537, 6441, 9329, 10311, 15029, 16611, 24059, 27987, 45087, 55483, 65303, 72177, 105203, 166449, 195909, 315609, 388381, 457121, 1054177, 1165143, 1371363, 2718667, 3162531, 7379239, 8156001, 22137717, 51654673, 154964019]

約数ペア:

[(1, 154964019), (3, 51654673), (7, 22137717), (19, 8156001), (21, 7379239), (49, 3162531), (57, 2718667), (113, 1371363), (133, 1165143), (147, 1054177), (339, 457121), (399, 388381), (491, 315609), (791, 195909), (931, 166449), (1473, 105203), (2147, 72177), (2373, 65303), (2793, 55483), (3437, 45087), (5537, 27987), (6441, 24059), (9329, 16611), (10311, 15029)]