21949942

素因数分解:

$2^1\times 7^5\times {\mathrm{653}}^1$

素因数の和:690

約数の個数: 24

約数和(自身を含む): 38470896

約数和(自身を除く): 16520954

約数列:

[1, 2, 7, 14, 49, 98, 343, 653, 686, 1306, 2401, 4571, 4802, 9142, 16807, 31997, 33614, 63994, 223979, 447958, 1567853, 3135706, 10974971, 21949942]

約数ペア:

[(1, 21949942), (2, 10974971), (7, 3135706), (14, 1567853), (49, 447958), (98, 223979), (343, 63994), (653, 33614), (686, 31997), (1306, 16807), (2401, 9142), (4571, 4802)]