21952021

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1619}}^1$

素因数の和:1788

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 5263979

約数列:

[1, 7, 13, 91, 149, 1043, 1619, 1937, 11333, 13559, 21047, 147329, 241231, 1688617, 3136003, 21952021]

約数ペア:

[(1, 21952021), (7, 3136003), (13, 1688617), (91, 241231), (149, 147329), (1043, 21047), (1619, 13559), (1937, 11333)]