21877065

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:566

約数の個数: 48

約数和(自身を含む): 43680000

約数和(自身を除く): 21802935

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 199, 315, 349, 597, 995, 1047, 1393, 1745, 1791, 2443, 2985, 3141, 4179, 5235, 6965, 7329, 8955, 12215, 12537, 15705, 20895, 21987, 36645, 62685, 69451, 109935, 208353, 347255, 486157, 625059, 1041765, 1458471, 2430785, 3125295, 4375413, 7292355, 21877065]

約数ペア:

[(1, 21877065), (3, 7292355), (5, 4375413), (7, 3125295), (9, 2430785), (15, 1458471), (21, 1041765), (35, 625059), (45, 486157), (63, 347255), (105, 208353), (199, 109935), (315, 69451), (349, 62685), (597, 36645), (995, 21987), (1047, 20895), (1393, 15705), (1745, 12537), (1791, 12215), (2443, 8955), (2985, 7329), (3141, 6965), (4179, 5235)]