19761973

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 26984448

約数和(自身を除く): 7222475

約数列:

[1, 7, 11, 17, 31, 77, 119, 187, 217, 341, 487, 527, 1309, 2387, 3409, 3689, 5357, 5797, 8279, 15097, 37499, 40579, 57953, 91069, 105679, 166067, 256649, 637483, 1162469, 1796543, 2823139, 19761973]

約数ペア:

[(1, 19761973), (7, 2823139), (11, 1796543), (17, 1162469), (31, 637483), (77, 256649), (119, 166067), (187, 105679), (217, 91069), (341, 57953), (487, 40579), (527, 37499), (1309, 15097), (2387, 8279), (3409, 5797), (3689, 5357)]