258991719

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{2677}}^1$

素因数の和:2975

約数の個数: 32

約数和(自身を含む): 419567616

約数和(自身を除く): 160575897

約数列:

[1, 3, 7, 17, 21, 51, 119, 271, 357, 813, 1897, 2677, 4607, 5691, 8031, 13821, 18739, 32249, 45509, 56217, 96747, 136527, 318563, 725467, 955689, 2176401, 5078269, 12332939, 15234807, 36998817, 86330573, 258991719]

約数ペア:

[(1, 258991719), (3, 86330573), (7, 36998817), (17, 15234807), (21, 12332939), (51, 5078269), (119, 2176401), (271, 955689), (357, 725467), (813, 318563), (1897, 136527), (2677, 96747), (4607, 56217), (5691, 45509), (8031, 32249), (13821, 18739)]