21450285

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5479}}^1$

素因数の和:5522

約数の個数: 32

約数和(自身を含む): 39456000

約数和(自身を除く): 18005715

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 5479, 16437, 27395, 49311, 82185, 147933, 158891, 246555, 476673, 739665, 794455, 1430019, 2383365, 4290057, 7150095, 21450285]

約数ペア:

[(1, 21450285), (3, 7150095), (5, 4290057), (9, 2383365), (15, 1430019), (27, 794455), (29, 739665), (45, 476673), (87, 246555), (135, 158891), (145, 147933), (261, 82185), (435, 49311), (783, 27395), (1305, 16437), (3915, 5479)]