1561686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1$

素因数の和:153

約数の個数: 48

約数和(自身を含む): 3803904

約数和(自身を除く): 2242218

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 103, 114, 133, 206, 266, 309, 361, 399, 618, 721, 722, 798, 1083, 1442, 1957, 2163, 2166, 2527, 3914, 4326, 5054, 5871, 7581, 11742, 13699, 15162, 27398, 37183, 41097, 74366, 82194, 111549, 223098, 260281, 520562, 780843, 1561686]

約数ペア:

[(1, 1561686), (2, 780843), (3, 520562), (6, 260281), (7, 223098), (14, 111549), (19, 82194), (21, 74366), (38, 41097), (42, 37183), (57, 27398), (103, 15162), (114, 13699), (133, 11742), (206, 7581), (266, 5871), (309, 5054), (361, 4326), (399, 3914), (618, 2527), (721, 2166), (722, 2163), (798, 1957), (1083, 1442)]