20956611

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 31997952

約数和(自身を除く): 11041341

約数列:

[1, 3, 13, 23, 39, 61, 69, 183, 299, 383, 793, 897, 1149, 1403, 2379, 4209, 4979, 8809, 14937, 18239, 23363, 26427, 54717, 70089, 114517, 303719, 343551, 537349, 911157, 1612047, 6985537, 20956611]

約数ペア:

[(1, 20956611), (3, 6985537), (13, 1612047), (23, 911157), (39, 537349), (61, 343551), (69, 303719), (183, 114517), (299, 70089), (383, 54717), (793, 26427), (897, 23363), (1149, 18239), (1403, 14937), (2379, 8809), (4209, 4979)]