21000869118

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{387227}}^1$

素因数の和:387389

約数の個数: 48

約数和(自身を含む): 47842793856

約数和(自身を除く): 26841924738

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 131, 138, 207, 262, 393, 414, 786, 1179, 2358, 3013, 6026, 9039, 18078, 27117, 54234, 387227, 774454, 1161681, 2323362, 3485043, 6970086, 8906221, 17812442, 26718663, 50726737, 53437326, 80155989, 101453474, 152180211, 160311978, 304360422, 456540633, 913081266, 1166714951, 2333429902, 3500144853, 7000289706, 10500434559, 21000869118]

約数ペア:

[(1, 21000869118), (2, 10500434559), (3, 7000289706), (6, 3500144853), (9, 2333429902), (18, 1166714951), (23, 913081266), (46, 456540633), (69, 304360422), (131, 160311978), (138, 152180211), (207, 101453474), (262, 80155989), (393, 53437326), (414, 50726737), (786, 26718663), (1179, 17812442), (2358, 8906221), (3013, 6970086), (6026, 3485043), (9039, 2323362), (18078, 1161681), (27117, 774454), (54234, 387227)]