28034937

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 51558400

約数和(自身を除く): 23523463

約数列:

[1, 3, 7, 9, 19, 21, 27, 37, 57, 63, 111, 133, 171, 189, 211, 259, 333, 399, 513, 633, 703, 777, 999, 1197, 1477, 1899, 2109, 2331, 3591, 4009, 4431, 4921, 5697, 6327, 6993, 7807, 12027, 13293, 14763, 18981, 23421, 28063, 36081, 39879, 44289, 54649, 70263, 84189, 108243, 132867, 148333, 163947, 210789, 252567, 444999, 491841, 757701, 1038331, 1334997, 1475523, 3114993, 4004991, 9344979, 28034937]

約数ペア:

[(1, 28034937), (3, 9344979), (7, 4004991), (9, 3114993), (19, 1475523), (21, 1334997), (27, 1038331), (37, 757701), (57, 491841), (63, 444999), (111, 252567), (133, 210789), (171, 163947), (189, 148333), (211, 132867), (259, 108243), (333, 84189), (399, 70263), (513, 54649), (633, 44289), (703, 39879), (777, 36081), (999, 28063), (1197, 23421), (1477, 18981), (1899, 14763), (2109, 13293), (2331, 12027), (3591, 7807), (4009, 6993), (4431, 6327), (4921, 5697)]