21796247277

素因数分解:

$3^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{377287}}^1$

素因数の和:377438

約数の個数: 36

約数和(自身を含む): 36903293856

約数和(自身を除く): 15107046579

約数列:

[1, 3, 7, 9, 21, 49, 63, 131, 147, 393, 441, 917, 1179, 2751, 6419, 8253, 19257, 57771, 377287, 1131861, 2641009, 3395583, 7923027, 18487063, 23769081, 49424597, 55461189, 148273791, 166383567, 345972179, 444821373, 1037916537, 2421805253, 3113749611, 7265415759, 21796247277]

約数ペア:

[(1, 21796247277), (3, 7265415759), (7, 3113749611), (9, 2421805253), (21, 1037916537), (49, 444821373), (63, 345972179), (131, 166383567), (147, 148273791), (393, 55461189), (441, 49424597), (917, 23769081), (1179, 18487063), (2751, 7923027), (6419, 3395583), (8253, 2641009), (19257, 1131861), (57771, 377287)]