21347730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1229}}^1$

素因数の和:1435

約数の個数: 48

約数和(自身を含む): 55837080

約数和(自身を除く): 34489350

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 193, 386, 579, 965, 1158, 1229, 1737, 1930, 2458, 2895, 3474, 3687, 5790, 6145, 7374, 8685, 11061, 12290, 17370, 18435, 22122, 36870, 55305, 110610, 237197, 474394, 711591, 1185985, 1423182, 2134773, 2371970, 3557955, 4269546, 7115910, 10673865, 21347730]

約数ペア:

[(1, 21347730), (2, 10673865), (3, 7115910), (5, 4269546), (6, 3557955), (9, 2371970), (10, 2134773), (15, 1423182), (18, 1185985), (30, 711591), (45, 474394), (90, 237197), (193, 110610), (386, 55305), (579, 36870), (965, 22122), (1158, 18435), (1229, 17370), (1737, 12290), (1930, 11061), (2458, 8685), (2895, 7374), (3474, 6145), (3687, 5790)]