219921765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{14057}}^1$

素因数の和:14221

約数の個数: 32

約数和(自身を含む): 404870400

約数和(自身を除く): 184948635

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 149, 447, 745, 1043, 2235, 3129, 5215, 14057, 15645, 42171, 70285, 98399, 210855, 295197, 491995, 1475985, 2094493, 6283479, 10472465, 14661451, 31417395, 43984353, 73307255, 219921765]

約数ペア:

[(1, 219921765), (3, 73307255), (5, 43984353), (7, 31417395), (15, 14661451), (21, 10472465), (35, 6283479), (105, 2094493), (149, 1475985), (447, 491995), (745, 295197), (1043, 210855), (2235, 98399), (3129, 70285), (5215, 42171), (14057, 15645)]