20219663457

素因数分解:

$3^2\times 7^2\times {\mathrm{8233}}^1\times {\mathrm{5569}}^1$

素因数の和:13822

約数の個数: 36

約数和(自身を含む): 33984764580

約数和(自身を除く): 13765101123

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 5569, 8233, 16707, 24699, 38983, 50121, 57631, 74097, 116949, 172893, 272881, 350847, 403417, 518679, 818643, 1210251, 2455929, 3630753, 45849577, 137548731, 320947039, 412646193, 962841117, 2246629273, 2888523351, 6739887819, 20219663457]

約数ペア:

[(1, 20219663457), (3, 6739887819), (7, 2888523351), (9, 2246629273), (21, 962841117), (49, 412646193), (63, 320947039), (147, 137548731), (441, 45849577), (5569, 3630753), (8233, 2455929), (16707, 1210251), (24699, 818643), (38983, 518679), (50121, 403417), (57631, 350847), (74097, 272881), (116949, 172893)]