19491208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3631}}^1$

素因数の和:3709

約数の個数: 32

約数和(自身を含む): 40533120

約数和(自身を除く): 21041912

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 3631, 5368, 7262, 14524, 29048, 39941, 79882, 159764, 221491, 319528, 442982, 885964, 1771928, 2436401, 4872802, 9745604, 19491208]

約数ペア:

[(1, 19491208), (2, 9745604), (4, 4872802), (8, 2436401), (11, 1771928), (22, 885964), (44, 442982), (61, 319528), (88, 221491), (122, 159764), (244, 79882), (488, 39941), (671, 29048), (1342, 14524), (2684, 7262), (3631, 5368)]