21835940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8209}}^1$

素因数の和:8244

約数の個数: 48

約数和(自身を含む): 55171200

約数和(自身を除く): 33335260

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 8209, 16418, 32836, 41045, 57463, 82090, 114926, 155971, 164180, 229852, 287315, 311942, 574630, 623884, 779855, 1091797, 1149260, 1559710, 2183594, 3119420, 4367188, 5458985, 10917970, 21835940]

約数ペア:

[(1, 21835940), (2, 10917970), (4, 5458985), (5, 4367188), (7, 3119420), (10, 2183594), (14, 1559710), (19, 1149260), (20, 1091797), (28, 779855), (35, 623884), (38, 574630), (70, 311942), (76, 287315), (95, 229852), (133, 164180), (140, 155971), (190, 114926), (266, 82090), (380, 57463), (532, 41045), (665, 32836), (1330, 16418), (2660, 8209)]