19019156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 37425024

約数和(自身を除く): 18405868

約数列:

[1, 2, 4, 13, 26, 52, 53, 67, 103, 106, 134, 206, 212, 268, 412, 689, 871, 1339, 1378, 1742, 2678, 2756, 3484, 3551, 5356, 5459, 6901, 7102, 10918, 13802, 14204, 21836, 27604, 46163, 70967, 89713, 92326, 141934, 179426, 184652, 283868, 358852, 365753, 731506, 1463012, 4754789, 9509578, 19019156]

約数ペア:

[(1, 19019156), (2, 9509578), (4, 4754789), (13, 1463012), (26, 731506), (52, 365753), (53, 358852), (67, 283868), (103, 184652), (106, 179426), (134, 141934), (206, 92326), (212, 89713), (268, 70967), (412, 46163), (689, 27604), (871, 21836), (1339, 14204), (1378, 13802), (1742, 10918), (2678, 7102), (2756, 6901), (3484, 5459), (3551, 5356)]