20492199

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 36900864

約数和(自身を除く): 16408665

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 131, 191, 273, 393, 573, 819, 917, 1179, 1337, 1703, 1719, 2483, 2751, 4011, 5109, 7449, 8253, 11921, 12033, 15327, 17381, 22347, 25021, 35763, 52143, 75063, 107289, 156429, 175147, 225189, 325273, 525441, 975819, 1576323, 2276911, 2927457, 6830733, 20492199]

約数ペア:

[(1, 20492199), (3, 6830733), (7, 2927457), (9, 2276911), (13, 1576323), (21, 975819), (39, 525441), (63, 325273), (91, 225189), (117, 175147), (131, 156429), (191, 107289), (273, 75063), (393, 52143), (573, 35763), (819, 25021), (917, 22347), (1179, 17381), (1337, 15327), (1703, 12033), (1719, 11921), (2483, 8253), (2751, 7449), (4011, 5109)]