249402531

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{2803}}^1$

素因数の和:3055

約数の個数: 32

約数和(自身を含む): 401981440

約数和(自身を除く): 152578909

約数列:

[1, 3, 7, 19, 21, 57, 133, 223, 399, 669, 1561, 2803, 4237, 4683, 8409, 12711, 19621, 29659, 53257, 58863, 88977, 159771, 372799, 625069, 1118397, 1875207, 4375483, 11876311, 13126449, 35628933, 83134177, 249402531]

約数ペア:

[(1, 249402531), (3, 83134177), (7, 35628933), (19, 13126449), (21, 11876311), (57, 4375483), (133, 1875207), (223, 1118397), (399, 625069), (669, 372799), (1561, 159771), (2803, 88977), (4237, 58863), (4683, 53257), (8409, 29659), (12711, 19621)]