19249377

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 30535680

約数和(自身を除く): 11286303

約数列:

[1, 3, 7, 21, 41, 79, 123, 237, 283, 287, 553, 849, 861, 1659, 1981, 3239, 5943, 9717, 11603, 22357, 22673, 34809, 67071, 68019, 81221, 156499, 243663, 469497, 916637, 2749911, 6416459, 19249377]

約数ペア:

[(1, 19249377), (3, 6416459), (7, 2749911), (21, 916637), (41, 469497), (79, 243663), (123, 156499), (237, 81221), (283, 68019), (287, 67071), (553, 34809), (849, 22673), (861, 22357), (1659, 11603), (1981, 9717), (3239, 5943)]