18683824

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:449

約数の個数: 40

約数和(自身を含む): 37775360

約数和(自身を除く): 19091536

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 139, 248, 271, 278, 496, 542, 556, 1084, 1112, 2168, 2224, 4309, 4336, 8401, 8618, 16802, 17236, 33604, 34472, 37669, 67208, 68944, 75338, 134416, 150676, 301352, 602704, 1167739, 2335478, 4670956, 9341912, 18683824]

約数ペア:

[(1, 18683824), (2, 9341912), (4, 4670956), (8, 2335478), (16, 1167739), (31, 602704), (62, 301352), (124, 150676), (139, 134416), (248, 75338), (271, 68944), (278, 67208), (496, 37669), (542, 34472), (556, 33604), (1084, 17236), (1112, 16802), (2168, 8618), (2224, 8401), (4309, 4336)]