21040428

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{587}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 30327252

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 103, 116, 174, 206, 309, 348, 412, 587, 618, 1174, 1236, 1761, 2348, 2987, 3522, 5974, 7044, 8961, 11948, 17023, 17922, 34046, 35844, 51069, 60461, 68092, 102138, 120922, 181383, 204276, 241844, 362766, 725532, 1753369, 3506738, 5260107, 7013476, 10520214, 21040428]

約数ペア:

[(1, 21040428), (2, 10520214), (3, 7013476), (4, 5260107), (6, 3506738), (12, 1753369), (29, 725532), (58, 362766), (87, 241844), (103, 204276), (116, 181383), (174, 120922), (206, 102138), (309, 68092), (348, 60461), (412, 51069), (587, 35844), (618, 34046), (1174, 17922), (1236, 17023), (1761, 11948), (2348, 8961), (2987, 7044), (3522, 5974)]