121216257

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{997}}^1$

素因数の和:1107

約数の個数: 40

約数和(自身を含む): 193212800

約数和(自身を除く): 71996543

約数列:

[1, 3, 9, 19, 27, 57, 79, 81, 171, 237, 513, 711, 997, 1501, 1539, 2133, 2991, 4503, 6399, 8973, 13509, 18943, 26919, 40527, 56829, 78763, 80757, 121581, 170487, 236289, 511461, 708867, 1496497, 1534383, 2126601, 4489491, 6379803, 13468473, 40405419, 121216257]

約数ペア:

[(1, 121216257), (3, 40405419), (9, 13468473), (19, 6379803), (27, 4489491), (57, 2126601), (79, 1534383), (81, 1496497), (171, 708867), (237, 511461), (513, 236289), (711, 170487), (997, 121581), (1501, 80757), (1539, 78763), (2133, 56829), (2991, 40527), (4503, 26919), (6399, 18943), (8973, 13509)]