20229391

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 26320896

約数和(自身を除く): 6091505

約数列:

[1, 7, 13, 31, 71, 91, 101, 217, 403, 497, 707, 923, 1313, 2201, 2821, 3131, 6461, 7171, 9191, 15407, 21917, 28613, 40703, 50197, 93223, 200291, 222301, 284921, 652561, 1556107, 2889913, 20229391]

約数ペア:

[(1, 20229391), (7, 2889913), (13, 1556107), (31, 652561), (71, 284921), (91, 222301), (101, 200291), (217, 93223), (403, 50197), (497, 40703), (707, 28613), (923, 21917), (1313, 15407), (2201, 9191), (2821, 7171), (3131, 6461)]