21607372

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{643}}^1$

素因数の和:949

約数の個数: 24

約数和(自身を含む): 39237632

約数和(自身を除く): 17630260

約数列:

[1, 2, 4, 31, 62, 124, 271, 542, 643, 1084, 1286, 2572, 8401, 16802, 19933, 33604, 39866, 79732, 174253, 348506, 697012, 5401843, 10803686, 21607372]

約数ペア:

[(1, 21607372), (2, 10803686), (4, 5401843), (31, 697012), (62, 348506), (124, 174253), (271, 79732), (542, 39866), (643, 33604), (1084, 19933), (1286, 16802), (2572, 8401)]