18966159

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:587

約数の個数: 24

約数和(自身を含む): 28259712

約数和(自身を除く): 9293553

約数列:

[1, 3, 9, 67, 71, 201, 213, 443, 603, 639, 1329, 3987, 4757, 14271, 29681, 31453, 42813, 89043, 94359, 267129, 283077, 2107351, 6322053, 18966159]

約数ペア:

[(1, 18966159), (3, 6322053), (9, 2107351), (67, 283077), (71, 267129), (201, 94359), (213, 89043), (443, 42813), (603, 31453), (639, 29681), (1329, 14271), (3987, 4757)]