20909272

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{911}}^1$

素因数の和:1087

約数の個数: 32

約数和(自身を含む): 41587200

約数和(自身を除く): 20677928

約数列:

[1, 2, 4, 8, 19, 38, 76, 151, 152, 302, 604, 911, 1208, 1822, 2869, 3644, 5738, 7288, 11476, 17309, 22952, 34618, 69236, 137561, 138472, 275122, 550244, 1100488, 2613659, 5227318, 10454636, 20909272]

約数ペア:

[(1, 20909272), (2, 10454636), (4, 5227318), (8, 2613659), (19, 1100488), (38, 550244), (76, 275122), (151, 138472), (152, 137561), (302, 69236), (604, 34618), (911, 22952), (1208, 17309), (1822, 11476), (2869, 7288), (3644, 5738)]