20726964

素因数分解:

$2^2\times 3^2\times {\mathrm{241}}^1\times {\mathrm{2389}}^1$

素因数の和:2640

約数の個数: 36

約数和(自身を含む): 52632580

約数和(自身を除く): 31905616

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 241, 482, 723, 964, 1446, 2169, 2389, 2892, 4338, 4778, 7167, 8676, 9556, 14334, 21501, 28668, 43002, 86004, 575749, 1151498, 1727247, 2302996, 3454494, 5181741, 6908988, 10363482, 20726964]

約数ペア:

[(1, 20726964), (2, 10363482), (3, 6908988), (4, 5181741), (6, 3454494), (9, 2302996), (12, 1727247), (18, 1151498), (36, 575749), (241, 86004), (482, 43002), (723, 28668), (964, 21501), (1446, 14334), (2169, 9556), (2389, 8676), (2892, 7167), (4338, 4778)]