1821980181

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{503}}^1\times {\mathrm{601}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 2905435008

約数和(自身を除く): 1083454827

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 503, 601, 861, 1509, 1803, 2009, 3521, 4207, 6027, 10563, 12621, 20623, 24641, 24647, 29449, 61869, 73923, 73941, 88347, 144361, 172487, 302303, 433083, 517461, 906909, 1010527, 1207409, 2116121, 3031581, 3622227, 6348363, 12394423, 14812847, 37183269, 44438541, 86760961, 260282883, 607326727, 1821980181]

約数ペア:

[(1, 1821980181), (3, 607326727), (7, 260282883), (21, 86760961), (41, 44438541), (49, 37183269), (123, 14812847), (147, 12394423), (287, 6348363), (503, 3622227), (601, 3031581), (861, 2116121), (1509, 1207409), (1803, 1010527), (2009, 906909), (3521, 517461), (4207, 433083), (6027, 302303), (10563, 172487), (12621, 144361), (20623, 88347), (24641, 73941), (24647, 73923), (29449, 61869)]