21534821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1877}}^1$

素因数の和:2044

約数の個数: 16

約数和(自身を含む): 27043200

約数和(自身を除く): 5508379

約数列:

[1, 7, 11, 77, 149, 1043, 1639, 1877, 11473, 13139, 20647, 144529, 279673, 1957711, 3076403, 21534821]

約数ペア:

[(1, 21534821), (7, 3076403), (11, 1957711), (77, 279673), (149, 144529), (1043, 20647), (1639, 13139), (1877, 11473)]