18495519

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 29721600

約数和(自身を除く): 11226081

約数列:

[1, 3, 7, 21, 23, 69, 149, 161, 257, 447, 483, 771, 1043, 1799, 3129, 3427, 5397, 5911, 10281, 17733, 23989, 38293, 41377, 71967, 114879, 124131, 268051, 804153, 880739, 2642217, 6165173, 18495519]

約数ペア:

[(1, 18495519), (3, 6165173), (7, 2642217), (21, 880739), (23, 804153), (69, 268051), (149, 124131), (161, 114879), (257, 71967), (447, 41377), (483, 38293), (771, 23989), (1043, 17733), (1799, 10281), (3129, 5911), (3427, 5397)]