20677228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{977}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 43704864

約数和(自身を除く): 23027636

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 962, 977, 1628, 1924, 1954, 3908, 5291, 10582, 10747, 12701, 21164, 21494, 25402, 36149, 42988, 50804, 72298, 139711, 144596, 279422, 397639, 469937, 558844, 795278, 939874, 1590556, 1879748, 5169307, 10338614, 20677228]

約数ペア:

[(1, 20677228), (2, 10338614), (4, 5169307), (11, 1879748), (13, 1590556), (22, 939874), (26, 795278), (37, 558844), (44, 469937), (52, 397639), (74, 279422), (143, 144596), (148, 139711), (286, 72298), (407, 50804), (481, 42988), (572, 36149), (814, 25402), (962, 21494), (977, 21164), (1628, 12701), (1924, 10747), (1954, 10582), (3908, 5291)]