31380778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{971}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 55847232

約数和(自身を除く): 24466454

約数列:

[1, 2, 11, 13, 22, 26, 113, 143, 226, 286, 971, 1243, 1469, 1942, 2486, 2938, 10681, 12623, 16159, 21362, 25246, 32318, 109723, 138853, 219446, 277706, 1206953, 1426399, 2413906, 2852798, 15690389, 31380778]

約数ペア:

[(1, 31380778), (2, 15690389), (11, 2852798), (13, 2413906), (22, 1426399), (26, 1206953), (113, 277706), (143, 219446), (226, 138853), (286, 109723), (971, 32318), (1243, 25246), (1469, 21362), (1942, 16159), (2486, 12623), (2938, 10681)]