21000966462

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1216601}}^1$

素因数の和:1216753

約数の個数: 48

約数和(自身を含む): 52382015712

約数和(自身を除く): 31381049250

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 137, 274, 411, 822, 959, 1233, 1918, 2466, 2877, 5754, 8631, 17262, 1216601, 2433202, 3649803, 7299606, 8516207, 10949409, 17032414, 21898818, 25548621, 51097242, 76645863, 153291726, 166674337, 333348674, 500023011, 1000046022, 1166720359, 1500069033, 2333440718, 3000138066, 3500161077, 7000322154, 10500483231, 21000966462]

約数ペア:

[(1, 21000966462), (2, 10500483231), (3, 7000322154), (6, 3500161077), (7, 3000138066), (9, 2333440718), (14, 1500069033), (18, 1166720359), (21, 1000046022), (42, 500023011), (63, 333348674), (126, 166674337), (137, 153291726), (274, 76645863), (411, 51097242), (822, 25548621), (959, 21898818), (1233, 17032414), (1918, 10949409), (2466, 8516207), (2877, 7299606), (5754, 3649803), (8631, 2433202), (17262, 1216601)]