21772758

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{719}}^1$

素因数の和:841

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 29445162

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 103, 147, 206, 294, 309, 618, 719, 721, 1438, 1442, 2157, 2163, 4314, 4326, 5033, 5047, 10066, 10094, 15099, 15141, 30198, 30282, 35231, 70462, 74057, 105693, 148114, 211386, 222171, 444342, 518399, 1036798, 1555197, 3110394, 3628793, 7257586, 10886379, 21772758]

約数ペア:

[(1, 21772758), (2, 10886379), (3, 7257586), (6, 3628793), (7, 3110394), (14, 1555197), (21, 1036798), (42, 518399), (49, 444342), (98, 222171), (103, 211386), (147, 148114), (206, 105693), (294, 74057), (309, 70462), (618, 35231), (719, 30282), (721, 30198), (1438, 15141), (1442, 15099), (2157, 10094), (2163, 10066), (4314, 5047), (4326, 5033)]