21554968

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1301}}^1$

素因数の和:1435

約数の個数: 32

約数和(自身を含む): 42966000

約数和(自身を除く): 21411032

約数列:

[1, 2, 4, 8, 19, 38, 76, 109, 152, 218, 436, 872, 1301, 2071, 2602, 4142, 5204, 8284, 10408, 16568, 24719, 49438, 98876, 141809, 197752, 283618, 567236, 1134472, 2694371, 5388742, 10777484, 21554968]

約数ペア:

[(1, 21554968), (2, 10777484), (4, 5388742), (8, 2694371), (19, 1134472), (38, 567236), (76, 283618), (109, 197752), (152, 141809), (218, 98876), (436, 49438), (872, 24719), (1301, 16568), (2071, 10408), (2602, 8284), (4142, 5204)]