20916882

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1523}}^1$

素因数の和:1647

約数の個数: 48

約数和(自身を含む): 52303680

約数和(自身を除く): 31386798

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 109, 126, 218, 327, 654, 763, 981, 1523, 1526, 1962, 2289, 3046, 4569, 4578, 6867, 9138, 10661, 13707, 13734, 21322, 27414, 31983, 63966, 95949, 166007, 191898, 332014, 498021, 996042, 1162049, 1494063, 2324098, 2988126, 3486147, 6972294, 10458441, 20916882]

約数ペア:

[(1, 20916882), (2, 10458441), (3, 6972294), (6, 3486147), (7, 2988126), (9, 2324098), (14, 1494063), (18, 1162049), (21, 996042), (42, 498021), (63, 332014), (109, 191898), (126, 166007), (218, 95949), (327, 63966), (654, 31983), (763, 27414), (981, 21322), (1523, 13734), (1526, 13707), (1962, 10661), (2289, 9138), (3046, 6867), (4569, 4578)]