20988162

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{349}}^1$

素因数の和:627

約数の個数: 48

約数和(自身を含む): 49303800

約数和(自身を除く): 28315638

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 257, 349, 514, 698, 771, 1047, 1542, 2094, 2313, 3141, 3341, 4537, 4626, 6282, 6682, 9074, 10023, 13611, 20046, 27222, 30069, 40833, 60138, 81666, 89693, 179386, 269079, 538158, 807237, 1166009, 1614474, 2332018, 3498027, 6996054, 10494081, 20988162]

約数ペア:

[(1, 20988162), (2, 10494081), (3, 6996054), (6, 3498027), (9, 2332018), (13, 1614474), (18, 1166009), (26, 807237), (39, 538158), (78, 269079), (117, 179386), (234, 89693), (257, 81666), (349, 60138), (514, 40833), (698, 30069), (771, 27222), (1047, 20046), (1542, 13611), (2094, 10023), (2313, 9074), (3141, 6682), (3341, 6282), (4537, 4626)]