21000923139

素因数分解:

$3^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{373}}^1\times {\mathrm{9679}}^1$

素因数の和:10339

約数の個数: 32

約数和(自身を含む): 32206366720

約数和(自身を除く): 11205443581

約数列:

[1, 3, 7, 21, 277, 373, 831, 1119, 1939, 2611, 5817, 7833, 9679, 29037, 67753, 103321, 203259, 309963, 723247, 2169741, 2681083, 3610267, 8043249, 10830801, 18767581, 25271869, 56302743, 75815607, 1000043959, 3000131877, 7000307713, 21000923139]

約数ペア:

[(1, 21000923139), (3, 7000307713), (7, 3000131877), (21, 1000043959), (277, 75815607), (373, 56302743), (831, 25271869), (1119, 18767581), (1939, 10830801), (2611, 8043249), (5817, 3610267), (7833, 2681083), (9679, 2169741), (29037, 723247), (67753, 309963), (103321, 203259)]