21877758

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{433}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 54434016

約数和(自身を除く): 32556258

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 401, 433, 802, 866, 1203, 1299, 2406, 2598, 2807, 3031, 3609, 3897, 5614, 6062, 7218, 7794, 8421, 9093, 16842, 18186, 25263, 27279, 50526, 54558, 173633, 347266, 520899, 1041798, 1215431, 1562697, 2430862, 3125394, 3646293, 7292586, 10938879, 21877758]

約数ペア:

[(1, 21877758), (2, 10938879), (3, 7292586), (6, 3646293), (7, 3125394), (9, 2430862), (14, 1562697), (18, 1215431), (21, 1041798), (42, 520899), (63, 347266), (126, 173633), (401, 54558), (433, 50526), (802, 27279), (866, 25263), (1203, 18186), (1299, 16842), (2406, 9093), (2598, 8421), (2807, 7794), (3031, 7218), (3609, 6062), (3897, 5614)]