1388996917

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{20021}}^1$

素因数の和:20109

約数の個数: 32

約数和(自身を含む): 1868292864

約数和(自身を除く): 479295947

約数列:

[1, 7, 11, 17, 53, 77, 119, 187, 371, 583, 901, 1309, 4081, 6307, 9911, 20021, 69377, 140147, 220231, 340357, 1061113, 1541617, 2382499, 3743927, 7427791, 11672243, 18038921, 26207489, 81705701, 126272447, 198428131, 1388996917]

約数ペア:

[(1, 1388996917), (7, 198428131), (11, 126272447), (17, 81705701), (53, 26207489), (77, 18038921), (119, 11672243), (187, 7427791), (371, 3743927), (583, 2382499), (901, 1541617), (1309, 1061113), (4081, 340357), (6307, 220231), (9911, 140147), (20021, 69377)]