198745281

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67121}}^1$

素因数の和:67181

約数の個数: 24

約数和(自身を含む): 335073024

約数和(自身を除く): 136327743

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 67121, 201363, 469847, 604089, 1409541, 3154687, 4228623, 9464061, 22082809, 28392183, 66248427, 198745281]

約数ペア:

[(1, 198745281), (3, 66248427), (7, 28392183), (9, 22082809), (21, 9464061), (47, 4228623), (63, 3154687), (141, 1409541), (329, 604089), (423, 469847), (987, 201363), (2961, 67121)]