520017897

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{8747}}^1$

素因数の和:8925

約数の個数: 32

約数和(自身を含む): 839808000

約数和(自身を除く): 319790103

約数列:

[1, 3, 7, 19, 21, 57, 133, 149, 399, 447, 1043, 2831, 3129, 8493, 8747, 19817, 26241, 59451, 61229, 166193, 183687, 498579, 1163351, 1303303, 3490053, 3909909, 9123121, 24762757, 27369363, 74288271, 173339299, 520017897]

約数ペア:

[(1, 520017897), (3, 173339299), (7, 74288271), (19, 27369363), (21, 24762757), (57, 9123121), (133, 3909909), (149, 3490053), (399, 1303303), (447, 1163351), (1043, 498579), (2831, 183687), (3129, 166193), (8493, 61229), (8747, 59451), (19817, 26241)]