21437822

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 16578178

約数列:

[1, 2, 7, 14, 43, 86, 149, 239, 298, 301, 478, 602, 1043, 1673, 2086, 3346, 6407, 10277, 12814, 20554, 35611, 44849, 71222, 71939, 89698, 143878, 249277, 498554, 1531273, 3062546, 10718911, 21437822]

約数ペア:

[(1, 21437822), (2, 10718911), (7, 3062546), (14, 1531273), (43, 498554), (86, 249277), (149, 143878), (239, 89698), (298, 71939), (301, 71222), (478, 44849), (602, 35611), (1043, 20554), (1673, 12814), (2086, 10277), (3346, 6407)]