20131965

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{809}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 40435200

約数和(自身を除く): 20303235

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 79, 105, 237, 315, 395, 553, 711, 809, 1185, 1659, 2427, 2765, 3555, 4045, 4977, 5663, 7281, 8295, 12135, 16989, 24885, 28315, 36405, 50967, 63911, 84945, 191733, 254835, 319555, 447377, 575199, 958665, 1342131, 2236885, 2875995, 4026393, 6710655, 20131965]

約数ペア:

[(1, 20131965), (3, 6710655), (5, 4026393), (7, 2875995), (9, 2236885), (15, 1342131), (21, 958665), (35, 575199), (45, 447377), (63, 319555), (79, 254835), (105, 191733), (237, 84945), (315, 63911), (395, 50967), (553, 36405), (711, 28315), (809, 24885), (1185, 16989), (1659, 12135), (2427, 8295), (2765, 7281), (3555, 5663), (4045, 4977)]