20421882964

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6454451}}^1$

素因数の和:6454575

約数の個数: 24

約数和(自身を含む): 41205221568

約数和(自身を除く): 20783338604

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6454451, 12908902, 25817804, 45181157, 90362314, 180724628, 729352963, 1458705926, 2917411852, 5105470741, 10210941482, 20421882964]

約数ペア:

[(1, 20421882964), (2, 10210941482), (4, 5105470741), (7, 2917411852), (14, 1458705926), (28, 729352963), (113, 180724628), (226, 90362314), (452, 45181157), (791, 25817804), (1582, 12908902), (3164, 6454451)]