281589

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:97

約数の個数: 32

約数和(自身を含む): 497664

約数和(自身を除く): 216075

約数列:

[1, 3, 7, 11, 21, 23, 33, 53, 69, 77, 159, 161, 231, 253, 371, 483, 583, 759, 1113, 1219, 1749, 1771, 3657, 4081, 5313, 8533, 12243, 13409, 25599, 40227, 93863, 281589]

約数ペア:

[(1, 281589), (3, 93863), (7, 40227), (11, 25599), (21, 13409), (23, 12243), (33, 8533), (53, 5313), (69, 4081), (77, 3657), (159, 1771), (161, 1749), (231, 1219), (253, 1113), (371, 759), (483, 583)]