21513272

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1619}}^1$

素因数の和:1787

約数の個数: 32

約数和(自身を含む): 44323200

約数和(自身を除く): 22809928

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 151, 302, 604, 1208, 1619, 1661, 3238, 3322, 6476, 6644, 12952, 13288, 17809, 35618, 71236, 142472, 244469, 488938, 977876, 1955752, 2689159, 5378318, 10756636, 21513272]

約数ペア:

[(1, 21513272), (2, 10756636), (4, 5378318), (8, 2689159), (11, 1955752), (22, 977876), (44, 488938), (88, 244469), (151, 142472), (302, 71236), (604, 35618), (1208, 17809), (1619, 13288), (1661, 12952), (3238, 6644), (3322, 6476)]