21014584

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{809}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 41990400

約数和(自身を除く): 20975816

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 191, 382, 764, 809, 1528, 1618, 3236, 3247, 6472, 6494, 12988, 13753, 25976, 27506, 55012, 110024, 154519, 309038, 618076, 1236152, 2626823, 5253646, 10507292, 21014584]

約数ペア:

[(1, 21014584), (2, 10507292), (4, 5253646), (8, 2626823), (17, 1236152), (34, 618076), (68, 309038), (136, 154519), (191, 110024), (382, 55012), (764, 27506), (809, 25976), (1528, 13753), (1618, 12988), (3236, 6494), (3247, 6472)]