18949413

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 30007296

約数和(自身を除く): 11057883

約数列:

[1, 3, 7, 21, 47, 73, 141, 219, 263, 329, 511, 789, 987, 1533, 1841, 3431, 5523, 10293, 12361, 19199, 24017, 37083, 57597, 72051, 86527, 134393, 259581, 403179, 902353, 2707059, 6316471, 18949413]

約数ペア:

[(1, 18949413), (3, 6316471), (7, 2707059), (21, 902353), (47, 403179), (73, 259581), (141, 134393), (219, 86527), (263, 72051), (329, 57597), (511, 37083), (789, 24017), (987, 19199), (1533, 12361), (1841, 10293), (3431, 5523)]