21138371763

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{28753}}^1$

素因数の和:28979

約数の個数: 32

約数和(自身を含む): 29756939520

約数和(自身を除く): 8618567757

約数列:

[1, 3, 41, 43, 123, 129, 139, 417, 1763, 5289, 5699, 5977, 17097, 17931, 28753, 86259, 245057, 735171, 1178873, 1236379, 3536619, 3709137, 3996667, 11990001, 50691539, 152074617, 163863347, 171856681, 491590041, 515570043, 7046123921, 21138371763]

約数ペア:

[(1, 21138371763), (3, 7046123921), (41, 515570043), (43, 491590041), (123, 171856681), (129, 163863347), (139, 152074617), (417, 50691539), (1763, 11990001), (5289, 3996667), (5699, 3709137), (5977, 3536619), (17097, 1236379), (17931, 1178873), (28753, 735171), (86259, 245057)]