21231249

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1033}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 33352704

約数和(自身を除く): 12121455

約数列:

[1, 3, 13, 17, 31, 39, 51, 93, 221, 403, 527, 663, 1033, 1209, 1581, 3099, 6851, 13429, 17561, 20553, 32023, 40287, 52683, 96069, 228293, 416299, 544391, 684879, 1248897, 1633173, 7077083, 21231249]

約数ペア:

[(1, 21231249), (3, 7077083), (13, 1633173), (17, 1248897), (31, 684879), (39, 544391), (51, 416299), (93, 228293), (221, 96069), (403, 52683), (527, 40287), (663, 32023), (1033, 20553), (1209, 17561), (1581, 13429), (3099, 6851)]