21534429

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1741}}^1$

素因数の和:1801

約数の個数: 32

約数和(自身を含む): 35676160

約数和(自身を除く): 14141731

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 133, 217, 399, 589, 651, 1741, 1767, 4123, 5223, 12187, 12369, 33079, 36561, 53971, 99237, 161913, 231553, 377797, 694659, 1025449, 1133391, 3076347, 7178143, 21534429]

約数ペア:

[(1, 21534429), (3, 7178143), (7, 3076347), (19, 1133391), (21, 1025449), (31, 694659), (57, 377797), (93, 231553), (133, 161913), (217, 99237), (399, 53971), (589, 36561), (651, 33079), (1741, 12369), (1767, 12187), (4123, 5223)]