21185676

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{5399}}^1$

素因数の和:5518

約数の個数: 36

約数和(自身を含む): 54054000

約数和(自身を除く): 32868324

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 218, 327, 436, 654, 981, 1308, 1962, 3924, 5399, 10798, 16197, 21596, 32394, 48591, 64788, 97182, 194364, 588491, 1176982, 1765473, 2353964, 3530946, 5296419, 7061892, 10592838, 21185676]

約数ペア:

[(1, 21185676), (2, 10592838), (3, 7061892), (4, 5296419), (6, 3530946), (9, 2353964), (12, 1765473), (18, 1176982), (36, 588491), (109, 194364), (218, 97182), (327, 64788), (436, 48591), (654, 32394), (981, 21596), (1308, 16197), (1962, 10798), (3924, 5399)]