18359719

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 23490560

約数和(自身を除く): 5130841

約数列:

[1, 7, 19, 31, 61, 73, 133, 217, 427, 511, 589, 1159, 1387, 1891, 2263, 4123, 4453, 8113, 9709, 13237, 15841, 31171, 35929, 42997, 84607, 138043, 251503, 300979, 592249, 966301, 2622817, 18359719]

約数ペア:

[(1, 18359719), (7, 2622817), (19, 966301), (31, 592249), (61, 300979), (73, 251503), (133, 138043), (217, 84607), (427, 42997), (511, 35929), (589, 31171), (1159, 15841), (1387, 13237), (1891, 9709), (2263, 8113), (4123, 4453)]