28137538

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2659}}^1$

素因数の和:2722

約数の個数: 32

約数和(自身を含む): 50944320

約数和(自身を除く): 22806782

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 143, 286, 407, 481, 814, 962, 2659, 5291, 5318, 10582, 29249, 34567, 58498, 69134, 98383, 196766, 380237, 760474, 1082213, 1278979, 2164426, 2557958, 14068769, 28137538]

約数ペア:

[(1, 28137538), (2, 14068769), (11, 2557958), (13, 2164426), (22, 1278979), (26, 1082213), (37, 760474), (74, 380237), (143, 196766), (286, 98383), (407, 69134), (481, 58498), (814, 34567), (962, 29249), (2659, 10582), (5291, 5318)]