20654028

素因数分解:

$2^2\times 3^8\times {\mathrm{787}}^1$

素因数の和:815

約数の個数: 54

約数和(自身を含む): 54282956

約数和(自身を除く): 33628928

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 787, 972, 1458, 1574, 2187, 2361, 2916, 3148, 4374, 4722, 6561, 7083, 8748, 9444, 13122, 14166, 21249, 26244, 28332, 42498, 63747, 84996, 127494, 191241, 254988, 382482, 573723, 764964, 1147446, 1721169, 2294892, 3442338, 5163507, 6884676, 10327014, 20654028]

約数ペア:

[(1, 20654028), (2, 10327014), (3, 6884676), (4, 5163507), (6, 3442338), (9, 2294892), (12, 1721169), (18, 1147446), (27, 764964), (36, 573723), (54, 382482), (81, 254988), (108, 191241), (162, 127494), (243, 84996), (324, 63747), (486, 42498), (729, 28332), (787, 26244), (972, 21249), (1458, 14166), (1574, 13122), (2187, 9444), (2361, 8748), (2916, 7083), (3148, 6561), (4374, 4722)]