21093735

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 37472544

約数和(自身を除く): 16378809

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 157, 159, 169, 195, 265, 471, 507, 689, 785, 795, 845, 2041, 2067, 2355, 2535, 3445, 6123, 8321, 8957, 10205, 10335, 24963, 26533, 26871, 30615, 41605, 44785, 79599, 108173, 124815, 132665, 134355, 324519, 397995, 540865, 1406249, 1622595, 4218747, 7031245, 21093735]

約数ペア:

[(1, 21093735), (3, 7031245), (5, 4218747), (13, 1622595), (15, 1406249), (39, 540865), (53, 397995), (65, 324519), (157, 134355), (159, 132665), (169, 124815), (195, 108173), (265, 79599), (471, 44785), (507, 41605), (689, 30615), (785, 26871), (795, 26533), (845, 24963), (2041, 10335), (2067, 10205), (2355, 8957), (2535, 8321), (3445, 6123)]