19219851

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6491}}^1$

素因数の和:6551

約数の個数: 24

約数和(自身を含む): 32408064

約数和(自身を除く): 13188213

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 6491, 19473, 45437, 58419, 136311, 305077, 408933, 915231, 2135539, 2745693, 6406617, 19219851]

約数ペア:

[(1, 19219851), (3, 6406617), (7, 2745693), (9, 2135539), (21, 915231), (47, 408933), (63, 305077), (141, 136311), (329, 58419), (423, 45437), (987, 19473), (2961, 6491)]