19722990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13417}}^1$

素因数の和:13441

約数の個数: 48

約数和(自身を含む): 55067472

約数和(自身を除く): 35344482

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13417, 26834, 40251, 67085, 80502, 93919, 134170, 187838, 201255, 281757, 402510, 469595, 563514, 657433, 939190, 1314866, 1408785, 1972299, 2817570, 3287165, 3944598, 6574330, 9861495, 19722990]

約数ペア:

[(1, 19722990), (2, 9861495), (3, 6574330), (5, 3944598), (6, 3287165), (7, 2817570), (10, 1972299), (14, 1408785), (15, 1314866), (21, 939190), (30, 657433), (35, 563514), (42, 469595), (49, 402510), (70, 281757), (98, 201255), (105, 187838), (147, 134170), (210, 93919), (245, 80502), (294, 67085), (490, 40251), (735, 26834), (1470, 13417)]