21248694

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 47422752

約数和(自身を除く): 26174058

約数列:

[1, 2, 3, 6, 9, 18, 73, 103, 146, 157, 206, 219, 309, 314, 438, 471, 618, 657, 927, 942, 1314, 1413, 1854, 2826, 7519, 11461, 15038, 16171, 22557, 22922, 32342, 34383, 45114, 48513, 67671, 68766, 97026, 103149, 135342, 145539, 206298, 291078, 1180483, 2360966, 3541449, 7082898, 10624347, 21248694]

約数ペア:

[(1, 21248694), (2, 10624347), (3, 7082898), (6, 3541449), (9, 2360966), (18, 1180483), (73, 291078), (103, 206298), (146, 145539), (157, 135342), (206, 103149), (219, 97026), (309, 68766), (314, 67671), (438, 48513), (471, 45114), (618, 34383), (657, 32342), (927, 22922), (942, 22557), (1314, 16171), (1413, 15038), (1854, 11461), (2826, 7519)]