21420804988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13711}}^1\times {\mathrm{35507}}^1$

素因数の和:49233

約数の個数: 24

約数和(自身を含む): 40898398464

約数和(自身を除く): 19477593476

約数列:

[1, 2, 4, 11, 22, 44, 13711, 27422, 35507, 54844, 71014, 142028, 150821, 301642, 390577, 603284, 781154, 1562308, 486836477, 973672954, 1947345908, 5355201247, 10710402494, 21420804988]

約数ペア:

[(1, 21420804988), (2, 10710402494), (4, 5355201247), (11, 1947345908), (22, 973672954), (44, 486836477), (13711, 1562308), (27422, 781154), (35507, 603284), (54844, 390577), (71014, 301642), (142028, 150821)]