19689898

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:342

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 12658262

約数列:

[1, 2, 29, 31, 47, 58, 62, 94, 233, 466, 899, 1363, 1457, 1798, 2726, 2914, 6757, 7223, 10951, 13514, 14446, 21902, 42253, 84506, 209467, 317579, 339481, 418934, 635158, 678962, 9844949, 19689898]

約数ペア:

[(1, 19689898), (2, 9844949), (29, 678962), (31, 635158), (47, 418934), (58, 339481), (62, 317579), (94, 209467), (233, 84506), (466, 42253), (899, 21902), (1363, 14446), (1457, 13514), (1798, 10951), (2726, 7223), (2914, 6757)]