19805764

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:448

約数の個数: 36

約数和(自身を含む): 38491264

約数和(自身を除く): 18685500

約数列:

[1, 2, 4, 11, 22, 44, 121, 151, 242, 271, 302, 484, 542, 604, 1084, 1661, 2981, 3322, 5962, 6644, 11924, 18271, 32791, 36542, 40921, 65582, 73084, 81842, 131164, 163684, 450131, 900262, 1800524, 4951441, 9902882, 19805764]

約数ペア:

[(1, 19805764), (2, 9902882), (4, 4951441), (11, 1800524), (22, 900262), (44, 450131), (121, 163684), (151, 131164), (242, 81842), (271, 73084), (302, 65582), (484, 40921), (542, 36542), (604, 32791), (1084, 18271), (1661, 11924), (2981, 6644), (3322, 5962)]