21591934

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 20985986

約数列:

[1, 2, 7, 13, 14, 26, 31, 43, 62, 86, 89, 91, 178, 182, 217, 301, 403, 434, 559, 602, 623, 806, 1118, 1157, 1246, 1333, 2314, 2666, 2759, 2821, 3827, 3913, 5518, 5642, 7654, 7826, 8099, 9331, 16198, 17329, 18662, 19313, 26789, 34658, 35867, 38626, 49751, 53578, 71734, 99502, 118637, 121303, 237274, 242606, 251069, 348257, 502138, 696514, 830459, 1542281, 1660918, 3084562, 10795967, 21591934]

約数ペア:

[(1, 21591934), (2, 10795967), (7, 3084562), (13, 1660918), (14, 1542281), (26, 830459), (31, 696514), (43, 502138), (62, 348257), (86, 251069), (89, 242606), (91, 237274), (178, 121303), (182, 118637), (217, 99502), (301, 71734), (403, 53578), (434, 49751), (559, 38626), (602, 35867), (623, 34658), (806, 26789), (1118, 19313), (1157, 18662), (1246, 17329), (1333, 16198), (2314, 9331), (2666, 8099), (2759, 7826), (2821, 7654), (3827, 5642), (3913, 5518)]