21000314864

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{1291}}^1\times {\mathrm{44203}}^1$

素因数の和:45525

約数の個数: 40

約数和(自身を含む): 42491006592

約数和(自身を除く): 21490691728

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 1291, 2582, 5164, 10328, 20656, 29693, 44203, 59386, 88406, 118772, 176812, 237544, 353624, 475088, 707248, 1016669, 2033338, 4066676, 8133352, 16266704, 57066073, 114132146, 228264292, 456528584, 913057168, 1312519679, 2625039358, 5250078716, 10500157432, 21000314864]

約数ペア:

[(1, 21000314864), (2, 10500157432), (4, 5250078716), (8, 2625039358), (16, 1312519679), (23, 913057168), (46, 456528584), (92, 228264292), (184, 114132146), (368, 57066073), (1291, 16266704), (2582, 8133352), (5164, 4066676), (10328, 2033338), (20656, 1016669), (29693, 707248), (44203, 475088), (59386, 353624), (88406, 237544), (118772, 176812)]