21490919996

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8434427}}^1$

素因数の和:8434458

約数の個数: 36

約数和(自身を含む): 47114714808

約数和(自身を除く): 25623794812

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8434427, 16868854, 33737708, 59040989, 109647551, 118081978, 219295102, 236163956, 413286923, 438590204, 767532857, 826573846, 1535065714, 1653147692, 3070131428, 5372729999, 10745459998, 21490919996]

約数ペア:

[(1, 21490919996), (2, 10745459998), (4, 5372729999), (7, 3070131428), (13, 1653147692), (14, 1535065714), (26, 826573846), (28, 767532857), (49, 438590204), (52, 413286923), (91, 236163956), (98, 219295102), (182, 118081978), (196, 109647551), (364, 59040989), (637, 33737708), (1274, 16868854), (2548, 8434427)]