142858779

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 221760000

約数和(自身を除く): 78901221

約数列:

[1, 3, 7, 21, 109, 139, 327, 417, 449, 763, 973, 1347, 2289, 2919, 3143, 9429, 15151, 45453, 48941, 62411, 106057, 146823, 187233, 318171, 342587, 436877, 1027761, 1310631, 6802799, 20408397, 47619593, 142858779]

約数ペア:

[(1, 142858779), (3, 47619593), (7, 20408397), (21, 6802799), (109, 1310631), (139, 1027761), (327, 436877), (417, 342587), (449, 318171), (763, 187233), (973, 146823), (1347, 106057), (2289, 62411), (2919, 48941), (3143, 45453), (9429, 15151)]