78489201

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{283}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 123015168

約数和(自身を除く): 44525967

約数列:

[1, 3, 7, 21, 47, 141, 281, 283, 329, 843, 849, 987, 1967, 1981, 5901, 5943, 13207, 13301, 39621, 39903, 79523, 92449, 93107, 238569, 277347, 279321, 556661, 1669983, 3737581, 11212743, 26163067, 78489201]

約数ペア:

[(1, 78489201), (3, 26163067), (7, 11212743), (21, 3737581), (47, 1669983), (141, 556661), (281, 279321), (283, 277347), (329, 238569), (843, 93107), (849, 92449), (987, 79523), (1967, 39903), (1981, 39621), (5901, 13301), (5943, 13207)]