21158872

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{7129}}^1$

素因数の和:7195

約数の個数: 32

約数和(自身を含む): 46202400

約数和(自身を除く): 25043528

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 7129, 14258, 28516, 49903, 57032, 99806, 199612, 377837, 399224, 755674, 1511348, 2644859, 3022696, 5289718, 10579436, 21158872]

約数ペア:

[(1, 21158872), (2, 10579436), (4, 5289718), (7, 3022696), (8, 2644859), (14, 1511348), (28, 755674), (53, 399224), (56, 377837), (106, 199612), (212, 99806), (371, 57032), (424, 49903), (742, 28516), (1484, 14258), (2968, 7129)]