21103515524

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{248827}}^1$

素因数の和:249084

約数の個数: 48

約数和(自身を含む): 45648989568

約数和(自身を除く): 24545474044

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 233, 364, 466, 932, 1631, 3029, 3262, 6058, 6524, 12116, 21203, 42406, 84812, 248827, 497654, 995308, 1741789, 3234751, 3483578, 6469502, 6967156, 12939004, 22643257, 45286514, 57976691, 90573028, 115953382, 231906764, 405836837, 753696983, 811673674, 1507393966, 1623347348, 3014787932, 5275878881, 10551757762, 21103515524]

約数ペア:

[(1, 21103515524), (2, 10551757762), (4, 5275878881), (7, 3014787932), (13, 1623347348), (14, 1507393966), (26, 811673674), (28, 753696983), (52, 405836837), (91, 231906764), (182, 115953382), (233, 90573028), (364, 57976691), (466, 45286514), (932, 22643257), (1631, 12939004), (3029, 6967156), (3262, 6469502), (6058, 3483578), (6524, 3234751), (12116, 1741789), (21203, 995308), (42406, 497654), (84812, 248827)]