311156729

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 367234560

約数和(自身を除く): 56077831

約数列:

[1, 13, 17, 43, 137, 221, 239, 559, 731, 1781, 2329, 3107, 4063, 5891, 9503, 10277, 30277, 32743, 52819, 76583, 100147, 133601, 174709, 425659, 556631, 1301911, 1407949, 2271217, 7236203, 18303337, 23935133, 311156729]

約数ペア:

[(1, 311156729), (13, 23935133), (17, 18303337), (43, 7236203), (137, 2271217), (221, 1407949), (239, 1301911), (559, 556631), (731, 425659), (1781, 174709), (2329, 133601), (3107, 100147), (4063, 76583), (5891, 52819), (9503, 32743), (10277, 30277)]