19971684

素因数分解:

$2^2\times 3^8\times {\mathrm{761}}^1$

素因数の和:789

約数の個数: 54

約数和(自身を含む): 52491894

約数和(自身を除く): 32520210

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 761, 972, 1458, 1522, 2187, 2283, 2916, 3044, 4374, 4566, 6561, 6849, 8748, 9132, 13122, 13698, 20547, 26244, 27396, 41094, 61641, 82188, 123282, 184923, 246564, 369846, 554769, 739692, 1109538, 1664307, 2219076, 3328614, 4992921, 6657228, 9985842, 19971684]

約数ペア:

[(1, 19971684), (2, 9985842), (3, 6657228), (4, 4992921), (6, 3328614), (9, 2219076), (12, 1664307), (18, 1109538), (27, 739692), (36, 554769), (54, 369846), (81, 246564), (108, 184923), (162, 123282), (243, 82188), (324, 61641), (486, 41094), (729, 27396), (761, 26244), (972, 20547), (1458, 13698), (1522, 13122), (2187, 9132), (2283, 8748), (2916, 6849), (3044, 6561), (4374, 4566)]