18973526

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 48

約数和(自身を含む): 34811952

約数和(自身を除く): 15838426

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 121, 143, 163, 242, 286, 326, 407, 481, 814, 962, 1573, 1793, 2119, 3146, 3586, 4238, 4477, 5291, 6031, 8954, 10582, 12062, 19723, 23309, 39446, 46618, 58201, 66341, 78403, 116402, 132682, 156806, 256399, 512798, 729751, 862433, 1459502, 1724866, 9486763, 18973526]

約数ペア:

[(1, 18973526), (2, 9486763), (11, 1724866), (13, 1459502), (22, 862433), (26, 729751), (37, 512798), (74, 256399), (121, 156806), (143, 132682), (163, 116402), (242, 78403), (286, 66341), (326, 58201), (407, 46618), (481, 39446), (814, 23309), (962, 19723), (1573, 12062), (1793, 10582), (2119, 8954), (3146, 6031), (3586, 5291), (4238, 4477)]