20213060049

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1123}}^1\times {\mathrm{21977}}^1$

素因数の和:23126

約数の個数: 48

約数和(自身を含む): 35967964032

約数和(自身を除く): 15754903983

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 1123, 3369, 7861, 10107, 14599, 21977, 23583, 43797, 65931, 70749, 102193, 131391, 153839, 197793, 285701, 306579, 461517, 857103, 919737, 1384551, 1999907, 2571309, 5999721, 17999163, 24680171, 74040513, 172761197, 222121539, 320842223, 518283591, 962526669, 1554850773, 2245895561, 2887580007, 6737686683, 20213060049]

約数ペア:

[(1, 20213060049), (3, 6737686683), (7, 2887580007), (9, 2245895561), (13, 1554850773), (21, 962526669), (39, 518283591), (63, 320842223), (91, 222121539), (117, 172761197), (273, 74040513), (819, 24680171), (1123, 17999163), (3369, 5999721), (7861, 2571309), (10107, 1999907), (14599, 1384551), (21977, 919737), (23583, 857103), (43797, 461517), (65931, 306579), (70749, 285701), (102193, 197793), (131391, 153839)]