28510251

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1487}}^1$

素因数の和:1591

約数の個数: 32

約数和(自身を含む): 47996928

約数和(自身を除く): 19486677

約数列:

[1, 3, 7, 11, 21, 33, 77, 83, 231, 249, 581, 913, 1487, 1743, 2739, 4461, 6391, 10409, 16357, 19173, 31227, 49071, 114499, 123421, 343497, 370263, 863947, 1357631, 2591841, 4072893, 9503417, 28510251]

約数ペア:

[(1, 28510251), (3, 9503417), (7, 4072893), (11, 2591841), (21, 1357631), (33, 863947), (77, 370263), (83, 343497), (231, 123421), (249, 114499), (581, 49071), (913, 31227), (1487, 19173), (1743, 16357), (2739, 10409), (4461, 6391)]