21000252686

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1\times {\mathrm{75253}}^1$

素因数の和:75936

約数の個数: 32

約数和(自身を含む): 37220026368

約数和(自身を除く): 16219773682

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 643, 1286, 4501, 9002, 19933, 39866, 75253, 139531, 150506, 279062, 526771, 1053542, 2332843, 4665686, 16329901, 32659802, 48387679, 96775358, 338713753, 677427506, 1500018049, 3000036098, 10500126343, 21000252686]

約数ペア:

[(1, 21000252686), (2, 10500126343), (7, 3000036098), (14, 1500018049), (31, 677427506), (62, 338713753), (217, 96775358), (434, 48387679), (643, 32659802), (1286, 16329901), (4501, 4665686), (9002, 2332843), (19933, 1053542), (39866, 526771), (75253, 279062), (139531, 150506)]