21496562438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{720829}}^1$

素因数の和:720912

約数の個数: 32

約数和(自身を含む): 36814229760

約数和(自身を除く): 15317667322

約数列:

[1, 2, 13, 26, 31, 37, 62, 74, 403, 481, 806, 962, 1147, 2294, 14911, 29822, 720829, 1441658, 9370777, 18741554, 22345699, 26670673, 44691398, 53341346, 290494087, 346718749, 580988174, 693437498, 826790863, 1653581726, 10748281219, 21496562438]

約数ペア:

[(1, 21496562438), (2, 10748281219), (13, 1653581726), (26, 826790863), (31, 693437498), (37, 580988174), (62, 346718749), (74, 290494087), (403, 53341346), (481, 44691398), (806, 26670673), (962, 22345699), (1147, 18741554), (2294, 9370777), (14911, 1441658), (29822, 720829)]