21332157021

素因数分解:

$3^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{587}}^1\times {\mathrm{1453}}^1$

素因数の和:2450

約数の個数: 48

約数和(自身を含む): 35388173184

約数和(自身を除く): 14056016163

約数列:

[1, 3, 7, 9, 21, 63, 397, 587, 1191, 1453, 1761, 2779, 3573, 4109, 4359, 5283, 8337, 10171, 12327, 13077, 25011, 30513, 36981, 91539, 233039, 576841, 699117, 852911, 1631273, 1730523, 2097351, 2558733, 4037887, 4893819, 5191569, 5970377, 7676199, 12113661, 14681457, 17911131, 36340983, 53733393, 338605667, 1015817001, 2370239669, 3047451003, 7110719007, 21332157021]

約数ペア:

[(1, 21332157021), (3, 7110719007), (7, 3047451003), (9, 2370239669), (21, 1015817001), (63, 338605667), (397, 53733393), (587, 36340983), (1191, 17911131), (1453, 14681457), (1761, 12113661), (2779, 7676199), (3573, 5970377), (4109, 5191569), (4359, 4893819), (5283, 4037887), (8337, 2558733), (10171, 2097351), (12327, 1730523), (13077, 1631273), (25011, 852911), (30513, 699117), (36981, 576841), (91539, 233039)]