20403558

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1951}}^1$

素因数の和:2049

約数の個数: 48

約数和(自身を含む): 51158016

約数和(自身を除く): 30754458

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 83, 126, 166, 249, 498, 581, 747, 1162, 1494, 1743, 1951, 3486, 3902, 5229, 5853, 10458, 11706, 13657, 17559, 27314, 35118, 40971, 81942, 122913, 161933, 245826, 323866, 485799, 971598, 1133531, 1457397, 2267062, 2914794, 3400593, 6801186, 10201779, 20403558]

約数ペア:

[(1, 20403558), (2, 10201779), (3, 6801186), (6, 3400593), (7, 2914794), (9, 2267062), (14, 1457397), (18, 1133531), (21, 971598), (42, 485799), (63, 323866), (83, 245826), (126, 161933), (166, 122913), (249, 81942), (498, 40971), (581, 35118), (747, 27314), (1162, 17559), (1494, 13657), (1743, 11706), (1951, 10458), (3486, 5853), (3902, 5229)]