20784998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:368

約数の個数: 32

約数和(自身を含む): 34909056

約数和(自身を除く): 14124058

約数列:

[1, 2, 13, 26, 47, 73, 94, 146, 233, 466, 611, 949, 1222, 1898, 3029, 3431, 6058, 6862, 10951, 17009, 21902, 34018, 44603, 89206, 142363, 221117, 284726, 442234, 799423, 1598846, 10392499, 20784998]

約数ペア:

[(1, 20784998), (2, 10392499), (13, 1598846), (26, 799423), (47, 442234), (73, 284726), (94, 221117), (146, 142363), (233, 89206), (466, 44603), (611, 34018), (949, 21902), (1222, 17009), (1898, 10951), (3029, 6862), (3431, 6058)]