21076910932

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{639547}}^1$

素因数の和:639676

約数の個数: 48

約数和(自身を含む): 46415835648

約数和(自身を除く): 25338924716

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 107, 154, 214, 308, 428, 749, 1177, 1498, 2354, 2996, 4708, 8239, 16478, 32956, 639547, 1279094, 2558188, 4476829, 7035017, 8953658, 14070034, 17907316, 28140068, 49245119, 68431529, 98490238, 136863058, 196980476, 273726116, 479020703, 752746819, 958041406, 1505493638, 1916082812, 3010987276, 5269227733, 10538455466, 21076910932]

約数ペア:

[(1, 21076910932), (2, 10538455466), (4, 5269227733), (7, 3010987276), (11, 1916082812), (14, 1505493638), (22, 958041406), (28, 752746819), (44, 479020703), (77, 273726116), (107, 196980476), (154, 136863058), (214, 98490238), (308, 68431529), (428, 49245119), (749, 28140068), (1177, 17907316), (1498, 14070034), (2354, 8953658), (2996, 7035017), (4708, 4476829), (8239, 2558188), (16478, 1279094), (32956, 639547)]