21960218

素因数分解:

$2^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 38648064

約数和(自身を除く): 16687846

約数列:

[1, 2, 7, 14, 97, 103, 157, 194, 206, 314, 679, 721, 1099, 1358, 1442, 2198, 9991, 15229, 16171, 19982, 30458, 32342, 69937, 106603, 113197, 139874, 213206, 226394, 1568587, 3137174, 10980109, 21960218]

約数ペア:

[(1, 21960218), (2, 10980109), (7, 3137174), (14, 1568587), (97, 226394), (103, 213206), (157, 139874), (194, 113197), (206, 106603), (314, 69937), (679, 32342), (721, 30458), (1099, 19982), (1358, 16171), (1442, 15229), (2198, 9991)]