21850868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 43481424

約数和(自身を除く): 21630556

約数列:

[1, 2, 4, 13, 26, 37, 41, 52, 74, 82, 148, 164, 277, 481, 533, 554, 962, 1066, 1108, 1517, 1924, 2132, 3034, 3601, 6068, 7202, 10249, 11357, 14404, 19721, 20498, 22714, 39442, 40996, 45428, 78884, 133237, 147641, 266474, 295282, 420209, 532948, 590564, 840418, 1680836, 5462717, 10925434, 21850868]

約数ペア:

[(1, 21850868), (2, 10925434), (4, 5462717), (13, 1680836), (26, 840418), (37, 590564), (41, 532948), (52, 420209), (74, 295282), (82, 266474), (148, 147641), (164, 133237), (277, 78884), (481, 45428), (533, 40996), (554, 39442), (962, 22714), (1066, 20498), (1108, 19721), (1517, 14404), (1924, 11357), (2132, 10249), (3034, 7202), (3601, 6068)]