21000455512

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{1213}}^1\times {\mathrm{52783}}^1$

素因数の和:54043

約数の個数: 32

約数和(自身を含む): 40370258880

約数和(自身を除く): 19369803368

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 1213, 2426, 4852, 9704, 49733, 52783, 99466, 105566, 198932, 211132, 397864, 422264, 2164103, 4328206, 8656412, 17312824, 64025779, 128051558, 256103116, 512206232, 2625056939, 5250113878, 10500227756, 21000455512]

約数ペア:

[(1, 21000455512), (2, 10500227756), (4, 5250113878), (8, 2625056939), (41, 512206232), (82, 256103116), (164, 128051558), (328, 64025779), (1213, 17312824), (2426, 8656412), (4852, 4328206), (9704, 2164103), (49733, 422264), (52783, 397864), (99466, 211132), (105566, 198932)]