19540984

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1741}}^1$

素因数の和:1831

約数の個数: 32

約数和(自身を含む): 38881440

約数和(自身を除く): 19340456

約数列:

[1, 2, 4, 8, 23, 46, 61, 92, 122, 184, 244, 488, 1403, 1741, 2806, 3482, 5612, 6964, 11224, 13928, 40043, 80086, 106201, 160172, 212402, 320344, 424804, 849608, 2442623, 4885246, 9770492, 19540984]

約数ペア:

[(1, 19540984), (2, 9770492), (4, 4885246), (8, 2442623), (23, 849608), (46, 424804), (61, 320344), (92, 212402), (122, 160172), (184, 106201), (244, 80086), (488, 40043), (1403, 13928), (1741, 11224), (2806, 6964), (3482, 5612)]