21538647816

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128206237}}^1$

素因数の和:128206253

約数の個数: 32

約数和(自身を含む): 61538994240

約数和(自身を除く): 40000346424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128206237, 256412474, 384618711, 512824948, 769237422, 897443659, 1025649896, 1538474844, 1794887318, 2692330977, 3076949688, 3589774636, 5384661954, 7179549272, 10769323908, 21538647816]

約数ペア:

[(1, 21538647816), (2, 10769323908), (3, 7179549272), (4, 5384661954), (6, 3589774636), (7, 3076949688), (8, 2692330977), (12, 1794887318), (14, 1538474844), (21, 1025649896), (24, 897443659), (28, 769237422), (42, 512824948), (56, 384618711), (84, 256412474), (168, 128206237)]