19980534

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{67961}}^1$

素因数の和:67980

約数の個数: 24

約数和(自身を含む): 46486008

約数和(自身を除く): 26505474

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 67961, 135922, 203883, 407766, 475727, 951454, 1427181, 2854362, 3330089, 6660178, 9990267, 19980534]

約数ペア:

[(1, 19980534), (2, 9990267), (3, 6660178), (6, 3330089), (7, 2854362), (14, 1427181), (21, 951454), (42, 475727), (49, 407766), (98, 203883), (147, 135922), (294, 67961)]