201613978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 324751680

約数和(自身を除く): 123137702

約数列:

[1, 2, 19, 38, 101, 131, 202, 262, 401, 802, 1919, 2489, 3838, 4978, 7619, 13231, 15238, 26462, 40501, 52531, 81002, 105062, 251389, 502778, 769519, 998089, 1539038, 1996178, 5305631, 10611262, 100806989, 201613978]

約数ペア:

[(1, 201613978), (2, 100806989), (19, 10611262), (38, 5305631), (101, 1996178), (131, 1539038), (202, 998089), (262, 769519), (401, 502778), (802, 251389), (1919, 105062), (2489, 81002), (3838, 52531), (4978, 40501), (7619, 26462), (13231, 15238)]