7881431439

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{52957}}^1$

素因数の和:53359

約数の個数: 32

約数和(自身を含む): 12676026880

約数和(自身を除く): 4794595441

約数列:

[1, 3, 7, 19, 21, 57, 133, 373, 399, 1119, 2611, 7087, 7833, 21261, 49609, 52957, 148827, 158871, 370699, 1006183, 1112097, 3018549, 7043281, 19752961, 21129843, 59258883, 138270727, 375306259, 414812181, 1125918777, 2627143813, 7881431439]

約数ペア:

[(1, 7881431439), (3, 2627143813), (7, 1125918777), (19, 414812181), (21, 375306259), (57, 138270727), (133, 59258883), (373, 21129843), (399, 19752961), (1119, 7043281), (2611, 3018549), (7087, 1112097), (7833, 1006183), (21261, 370699), (49609, 158871), (52957, 148827)]