1639296729

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 2827056960

約数和(自身を除く): 1187760231

約数列:

[1, 3, 7, 9, 21, 37, 63, 83, 111, 229, 249, 259, 333, 581, 687, 747, 777, 1369, 1603, 1743, 2061, 2331, 3071, 4107, 4809, 5229, 8473, 9213, 9583, 12321, 14427, 19007, 21497, 25419, 27639, 28749, 57021, 59311, 64491, 76257, 86247, 113627, 133049, 171063, 177933, 193473, 313501, 340881, 399147, 533799, 703259, 795389, 940503, 1022643, 1197441, 2109777, 2194507, 2386167, 2821509, 4922813, 6329331, 6583521, 7158501, 14768439, 19750563, 26020583, 44305317, 78061749, 182144081, 234185247, 546432243, 1639296729]

約数ペア:

[(1, 1639296729), (3, 546432243), (7, 234185247), (9, 182144081), (21, 78061749), (37, 44305317), (63, 26020583), (83, 19750563), (111, 14768439), (229, 7158501), (249, 6583521), (259, 6329331), (333, 4922813), (581, 2821509), (687, 2386167), (747, 2194507), (777, 2109777), (1369, 1197441), (1603, 1022643), (1743, 940503), (2061, 795389), (2331, 703259), (3071, 533799), (4107, 399147), (4809, 340881), (5229, 313501), (8473, 193473), (9213, 177933), (9583, 171063), (12321, 133049), (14427, 113627), (19007, 86247), (21497, 76257), (25419, 64491), (27639, 59311), (28749, 57021)]