21140568

素因数分解:

$2^3\times 3^3\times {\mathrm{97}}^1\times {\mathrm{1009}}^1$

素因数の和:1121

約数の個数: 64

約数和(自身を含む): 59388000

約数和(自身を除く): 38247432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 97, 108, 194, 216, 291, 388, 582, 776, 873, 1009, 1164, 1746, 2018, 2328, 2619, 3027, 3492, 4036, 5238, 6054, 6984, 8072, 9081, 10476, 12108, 18162, 20952, 24216, 27243, 36324, 54486, 72648, 97873, 108972, 195746, 217944, 293619, 391492, 587238, 782984, 880857, 1174476, 1761714, 2348952, 2642571, 3523428, 5285142, 7046856, 10570284, 21140568]

約数ペア:

[(1, 21140568), (2, 10570284), (3, 7046856), (4, 5285142), (6, 3523428), (8, 2642571), (9, 2348952), (12, 1761714), (18, 1174476), (24, 880857), (27, 782984), (36, 587238), (54, 391492), (72, 293619), (97, 217944), (108, 195746), (194, 108972), (216, 97873), (291, 72648), (388, 54486), (582, 36324), (776, 27243), (873, 24216), (1009, 20952), (1164, 18162), (1746, 12108), (2018, 10476), (2328, 9081), (2619, 8072), (3027, 6984), (3492, 6054), (4036, 5238)]