21329077

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 28569600

約数和(自身を除く): 7240523

約数列:

[1, 7, 11, 19, 61, 77, 133, 209, 239, 427, 671, 1159, 1463, 1673, 2629, 4541, 4697, 8113, 12749, 14579, 18403, 31787, 49951, 89243, 102053, 160369, 277001, 349657, 1122583, 1939007, 3047011, 21329077]

約数ペア:

[(1, 21329077), (7, 3047011), (11, 1939007), (19, 1122583), (61, 349657), (77, 277001), (133, 160369), (209, 102053), (239, 89243), (427, 49951), (671, 31787), (1159, 18403), (1463, 14579), (1673, 12749), (2629, 8113), (4541, 4697)]